{"id":2905,"date":"2023-07-07T16:00:21","date_gmt":"2023-07-07T16:00:21","guid":{"rendered":"https:\/\/msgprogramator.sk\/?p=2905"},"modified":"2025-10-04T09:19:00","modified_gmt":"2025-10-04T09:19:00","slug":"java-lambda","status":"publish","type":"post","link":"https:\/\/msgprogramator.sk\/en\/java-lambda\/","title":{"rendered":"Java Lambda Expressions: What are they and how do they work?"},"content":{"rendered":"<p>Many <a href=\"https:\/\/msg-life.sk\/en\/jobs\/java-programmer-senior\/\">Java developers<\/a> have already encountered lambda expressions. This functionality was added in the 2014 version of Java 8, so it is no longer a new feature. It is often used by developers and has many advantages. However, if you find lambda expressions difficult or don&#8217;t know what they represent, you&#8217;ve come to the right place.  <\/p>\n<h2>Lambda expression meaning<\/h2>\n<p>The lambda expression represents functionality that was added in Java 8. It is a short block of code similar to a method, but unlike it, it does not need the method&#8217;s name and can be implemented directly in the body of the method. <\/p>\n<p>Lambda has several advantages:<\/p>\n<ul>\n<li><strong>it clarifies the code and provides better readability<\/strong> &#8211; instead of several lines of code, you only need to write a few lines,<\/li>\n<li><strong>it allows you to use functional programming<\/strong> &#8211; that is, to use a function as an input parameter of another function,<\/li>\n<li><strong>it improves code parallelization<\/strong> &#8211; in other words, more efficient code execution on multicore processes.<\/li>\n<\/ul>\n<h2>Lambda expression syntax<\/h2>\n<p>Each lambda expression must have the <strong>correct syntax.<\/strong> Only then will it have the desired effect. Lambda must contain:<\/p>\n<ul>\n<li>list of arguments,<\/li>\n<li>the arrow sign,<\/li>\n<li>the body of the expression.<\/li>\n<\/ul>\n<p>In practice, it may look like this:<\/p>\n<p><strong>(argument list) -&gt; expression body<\/strong><\/p>\n<p><strong>(argument list) -&gt; {expression1; expression2, &#8230;}<\/strong><\/p>\n<p><strong> <\/strong>The argument list can also be <strong>empty<\/strong>, for example:<\/p>\n<p><strong>() -&gt; { System.out.println(\u201eAhoj\u201c); }<\/strong><\/p>\n<p><strong> <\/strong>The body of the expression must only contain compound parentheses if it contains <strong>more than one line of code<\/strong>. In the above example, we can omit them:<\/p>\n<p><strong>() -&gt; System.out.println(\u201eAhoj\u201c);<\/strong><\/p>\n<p><strong> <\/strong>The argument types may or may not be defined, which means that the two expressions are <strong>equivalent<\/strong>:<\/p>\n<p><strong>(x) -&gt; System.out.println(x);<\/strong><\/p>\n<p><strong>(Int x) -&gt; System.out.println(x);<\/strong><\/p>\n<p><strong> <\/strong>Lambda can also <strong> return values<\/strong> without using the <em>return<\/em> word. The compiler can infer this itself:<\/p>\n<p><strong>(x, y) -&gt; x + y<\/strong><\/p>\n<div class=\"inside\"><\/div>\n<h2>Java lambda expressions example<\/h2>\n<p>To give you a better idea, here are <strong>three examples<\/strong> of how a lambda expression can be used.<\/p>\n<h3>Example No. 1: Lambda expression in forEach<\/h3>\n<p>Lambda expressions are often used as <strong>function parameters<\/strong>.<\/p>\n<pre><code class=\"language-java\" data-line=\"\">package com.test;\n\nimport java.util.ArrayList;\n\npublic class LambdaExample1 {\n\n\tpublic static void main(String[] args) {\n\t\tArrayList&lt;Integer&gt; numbers = new ArrayList&lt;Integer&gt;();\n\t\tnumbers.add(1);\n\t\tnumbers.add(2);\n\t\tnumbers.add(3);\n\t\t\/\/ Vytlaci na konzolu 1 2 3 pod sebou. \n\t\tnumbers.forEach(x -&gt; System.out.println(x));\n\t}\n}<\/code><\/pre>\n<p>The lambda expression can be saved in a <strong>variable<\/strong>. However, this only applies if the variable interfaces with a single method. In such cases, the lambda expression must have the same number of parameters and return type as the method.<\/p>\n<p>Java has <strong>many user interfaces.<\/strong> One example is the consumer interface used with lists:<\/p>\n<pre><code class=\"language-java\" data-line=\"\">java.util.function.Consumer&lt;Integer&gt; function = x -&gt; System.out.println(x);\nnumbers.forEach(function);<\/code><\/pre>\n<h3>Example No. 2: Defining a functional interface for a lambda expression<\/h3>\n<p>The second example shows how to create a functional interface for <strong>basic mathematical operations<\/strong>. You can insert expressions for addition, subtraction, multiplication, division and the <em>operate<\/em> method. Their job is to take two numbers and the associated lambda expression calculates the result, which looks like this:<\/p>\n<pre><code class=\"language-java\" data-line=\"\">4 + 2 = 6 \n4 - 2 = 2\n4 * 2 = 8\n4 \/ 2 = 2<\/code><\/pre>\n<p>Thanks to the operate method, the associated lambda expression calculates the result quickly and easily.<\/p>\n<p>You can use lambda expressions in the functional interface for basic mathematical operations.<\/p>\n<pre><code class=\"language-java\" data-line=\"\">package com.test;\n\nimport java.lang. ArithmeticException;\n\npublic class LambdaExample2 {\n    \/\/ Deklarovanie interfejsu pre lamda vyraz\n    interface MathOperation {\n        int operation(int x, int y);\n    }\n    \/\/ Deklarovanie metody pre matematicku operaciu\n    private int operate (int x, int y, MathOperation mathOperation) {\n        return mathOperation.operation (x, y);\n    }\n    \/\/ Vypis celej operacie do konzoly.\n    public static void printResult(int x, char c, int y, int z) {\n        System.out.printf(&quot;%d %s %d = %d\\n&quot;, x, c, y, z);\n    }\n    public static void main(String[] args) {\n        \/\/ Bez deklaracie typu\n        MathOperation addition = (x, y) -&gt; x + y;\n        \/\/ S deklaraciou typu (int)\n        MathOperation substraction = (int x, int y) -&gt; x - y;\n        \/\/ S klucovym slovom return (musi byt v krutenych zatvorkach)\n        MathOperation multiplication = (x, y) -&gt; { return (x * y); };\n        \/\/ Viacriadkovy lambda vyraz\n        MathOperation division = (x, y) -&gt; {\n            if(y != 0)\n                return (x \/ y);\n            else\n                throw new ArithmeticException(&quot;You shouldn&#039;t divide a number by zero!&quot;);\n        };\n\n        LambdaExample2 test = new LambdaExample2();\n        int a = 4; int b = 2;\n        \/\/ Scitanie dvoch cisiel\n        printResult(a, &#039;+&#039;, b, test.operate (a, b, addition));\n        \/\/ Odcitanie dvoch cisiel\n        printResult(a, &#039;-&#039;, b, test.operate (a, b, substraction));\n        \/\/ Vynasobenie dvoch cisiel\n        printResult(a, &#039;*&#039;, b, test.operate (a, b, multiplication));\n        \/\/ Vydelenie dvoch cisiel\n        printResult(a, &#039;\/&#039;, b, test.operate (a, b, division));\n    }\n}<\/code><\/pre>\n<h3>Example No. 3: Sorting, filtering and iterating collections using lambda expressions<\/h3>\n<p>The advantage of lambda expressions is that they reduce the need to write custom helper methods. At the same time, they also <strong>shorten and clarify the code<\/strong>, making the whole job easier. The power of lambdas is particularly evident when combined with other Java functionality, such as collections.<\/p>\n<p>The following example shows how lambda expressions can be used to easily <strong>sort, filter and iterate<\/strong> objects in a collection:<\/p>\n<pre><code class=\"language-java\" data-line=\"\">package com.test;\n\nimport java.util.ArrayList;\nimport java.util.List;\nimport java.util.stream.Stream;\n\nclass Product {\n    String name;\n    double price;\n\n    public Product(String name, double price) {\n        this.name = name;\n        this.price = price;\n    }\n}\n\npublic class LambdaExample3 {\n\n    public static Product createProduct(String name, double price) {\n        return new Product(name, price);\n    }\n\n    public static void main(String[] args) {\n        List&lt;Product&gt; products = new ArrayList();\n        products.add(createProduct(&quot;Chlieb&quot;, 1.0));\n        products.add(createProduct(&quot;Mlieko&quot;, 0.5));\n        products.add(createProduct(&quot;Keksy&quot;, 0.8));\n        products.add(createProduct(&quot;Smotana&quot;, 0.4));\n        products.add(createProduct (&quot;Cokolada&quot;, 0.7));\n\n        \/\/ Sortovanie nazvov produktov podla abecedy cez lambdu\n        products.sort((p1, p2) -&gt; p1.name.compareTo(p2.name));\n\n        \/\/ Vyfiltrovanie produktov s cenou (0.5. 1.0)\n        Stream&lt;Product&gt; filteredProducts = products.stream().filter(p -&gt; p.price &gt; 0.5 &amp;&amp; p.price &lt; 1.0);\n\n        \/\/ Iterovanie v kolekcii\n        filteredProducts.forEach(product -&gt; System.out.println(product.name + &quot;: &quot; + product.price));\n    }\n}<\/code><\/pre>\n<p>The output looks like this:<\/p>\n<pre><code class=\"language-java\" data-line=\"\">Cokolada: 0.7\nKeksy: 0.8<\/code><\/pre>\n<h2>Lambda expressions make your work easier and faster<\/h2>\n<p>Lambda expressions are a great feature of the Java programming language. Using them can <strong>make your work easier and faster<\/strong>. They also make code cleaner and open up new possibilities. Lambda is part of Java since <a href=\"https:\/\/msgprogramator.sk\/en\/java-jdk\/\">Java 8<\/a>. So if you&#8217;re running an older version, it&#8217;s worth thinking about upgrading.<\/p>\n<p>We have prepared files with the above Java Lambda examples that you can run directly in Java. <a href=\"https:\/\/msgprogramator.sk\/wp-content\/uploads\/2023\/08\/Lambda.zip\">Download the code here.<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Do you have problems with lambda expressions or do you not know what they mean? You&#8217;re in the right place.<\/p>\n","protected":false},"author":14,"featured_media":1824,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[57],"tags":[],"class_list":["post-2905","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-java"],"acf":[],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO Pro 4.9.9 - aioseo.com -->\n\t<meta name=\"description\" content=\"Lambda expressions were added to Java in 2014. Using them brings many benefits to programming. We&#039;ll give you some advice on how to use them.\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"Jozef Wagner\"\/>\n\t<meta name=\"google-site-verification\" content=\"dbeebLa6HN1i69h9Z_saKLQqOmKjP5gPLGWGplkHvfg\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/msgprogramator.sk\/en\/java-lambda\/\" \/>\n\t<meta name=\"generator\" content=\"All in One SEO Pro (AIOSEO) 4.9.9\" \/>\n\t\t<meta property=\"og:locale\" content=\"en_US\" \/>\n\t\t<meta property=\"og:site_name\" content=\"msgprogramator.sk - Zamestnanie software developer\" \/>\n\t\t<meta property=\"og:type\" content=\"article\" \/>\n\t\t<meta property=\"og:title\" content=\"Java Lambda Expressions and Their Uses in Coding - msgprogramator.sk\" \/>\n\t\t<meta property=\"og:description\" content=\"Lambda expressions were added to Java in 2014. Using them brings many benefits to programming. We&#039;ll give you some advice on how to use them.\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/msgprogramator.sk\/en\/java-lambda\/\" \/>\n\t\t<meta property=\"og:image\" content=\"https:\/\/msgprogramator.sk\/wp-content\/uploads\/2023\/07\/lamdba-vyrazy-1200-630-shared.webp\" \/>\n\t\t<meta property=\"og:image:secure_url\" content=\"https:\/\/msgprogramator.sk\/wp-content\/uploads\/2023\/07\/lamdba-vyrazy-1200-630-shared.webp\" \/>\n\t\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t\t<meta property=\"og:image:height\" content=\"630\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2023-07-07T16:00:21+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2025-10-04T09:19:00+00:00\" \/>\n\t\t<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n\t\t<meta name=\"twitter:title\" content=\"Java Lambda Expressions and Their Uses in Coding - msgprogramator.sk\" \/>\n\t\t<meta name=\"twitter:description\" content=\"Lambda expressions were added to Java in 2014. Using them brings many benefits to programming. We&#039;ll give you some advice on how to use them.\" \/>\n\t\t<meta name=\"twitter:image\" content=\"https:\/\/msgtester.sk\/wp-content\/uploads\/2022\/10\/social-share-tester.jpg\" \/>\n\t\t<script type=\"application\/ld+json\" class=\"aioseo-schema\">\n\t\t\t{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"BlogPosting\",\"@id\":\"https:\\\/\\\/msgprogramator.sk\\\/en\\\/java-lambda\\\/#blogposting\",\"name\":\"Java Lambda Expressions and Their Uses in Coding - msgprogramator.sk\",\"headline\":\"Java Lambda Expressions: What are they and how do they work?\",\"author\":{\"@id\":\"https:\\\/\\\/msgprogramator.sk\\\/en\\\/author\\\/jozef-wagnermsg-life-com\\\/#author\"},\"publisher\":{\"@id\":\"https:\\\/\\\/msgprogramator.sk\\\/en\\\/#organization\"},\"image\":{\"@type\":\"ImageObject\",\"url\":\"https:\\\/\\\/msgprogramator.sk\\\/wp-content\\\/uploads\\\/2023\\\/07\\\/lamdba-vyrazy-954-600-listing.webp\",\"width\":954,\"height\":600,\"caption\":\"Got a problem with lambda expressions in Java? We can advise you on how to use them in programming.\"},\"datePublished\":\"2023-07-07T16:00:21+00:00\",\"dateModified\":\"2025-10-04T09:19:00+00:00\",\"inLanguage\":\"en-US\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/msgprogramator.sk\\\/en\\\/java-lambda\\\/#webpage\"},\"isPartOf\":{\"@id\":\"https:\\\/\\\/msgprogramator.sk\\\/en\\\/java-lambda\\\/#webpage\"},\"articleSection\":\"Java, Optional\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/msgprogramator.sk\\\/en\\\/java-lambda\\\/#breadcrumblist\",\"itemListElement\":[{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/msgprogramator.sk\\\/en\\\/#listItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/msgprogramator.sk\\\/en\\\/\",\"nextItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/msgprogramator.sk\\\/en\\\/java\\\/#listItem\",\"name\":\"Java\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/msgprogramator.sk\\\/en\\\/java\\\/#listItem\",\"position\":2,\"name\":\"Java\",\"item\":\"https:\\\/\\\/msgprogramator.sk\\\/en\\\/java\\\/\",\"nextItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/msgprogramator.sk\\\/en\\\/java-lambda\\\/#listItem\",\"name\":\"Java Lambda Expressions: What are they and how do they work?\"},\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/msgprogramator.sk\\\/en\\\/#listItem\",\"name\":\"Home\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/msgprogramator.sk\\\/en\\\/java-lambda\\\/#listItem\",\"position\":3,\"name\":\"Java Lambda Expressions: What are they and how do they work?\",\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/msgprogramator.sk\\\/en\\\/java\\\/#listItem\",\"name\":\"Java\"}}]},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/msgprogramator.sk\\\/en\\\/#organization\",\"name\":\"msgprogramator.sk\",\"description\":\"Zamestnanie software developer\",\"url\":\"https:\\\/\\\/msgprogramator.sk\\\/en\\\/\"},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/msgprogramator.sk\\\/en\\\/author\\\/jozef-wagnermsg-life-com\\\/#author\",\"url\":\"https:\\\/\\\/msgprogramator.sk\\\/en\\\/author\\\/jozef-wagnermsg-life-com\\\/\",\"name\":\"Jozef Wagner\",\"image\":{\"@type\":\"ImageObject\",\"@id\":\"https:\\\/\\\/msgprogramator.sk\\\/en\\\/java-lambda\\\/#authorImage\",\"url\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/fb7bc1666998c0b0e402c67fbc17b24501b12271659b4e71ffb7e4045d614cee?s=96&d=mm&r=g\",\"width\":96,\"height\":96,\"caption\":\"Jozef Wagner\"}},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/msgprogramator.sk\\\/en\\\/java-lambda\\\/#webpage\",\"url\":\"https:\\\/\\\/msgprogramator.sk\\\/en\\\/java-lambda\\\/\",\"name\":\"Java Lambda Expressions and Their Uses in Coding - msgprogramator.sk\",\"description\":\"Lambda expressions were added to Java in 2014. Using them brings many benefits to programming. We'll give you some advice on how to use them.\",\"inLanguage\":\"en-US\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/msgprogramator.sk\\\/en\\\/#website\"},\"breadcrumb\":{\"@id\":\"https:\\\/\\\/msgprogramator.sk\\\/en\\\/java-lambda\\\/#breadcrumblist\"},\"author\":{\"@id\":\"https:\\\/\\\/msgprogramator.sk\\\/en\\\/author\\\/jozef-wagnermsg-life-com\\\/#author\"},\"creator\":{\"@id\":\"https:\\\/\\\/msgprogramator.sk\\\/en\\\/author\\\/jozef-wagnermsg-life-com\\\/#author\"},\"image\":{\"@type\":\"ImageObject\",\"url\":\"https:\\\/\\\/msgprogramator.sk\\\/wp-content\\\/uploads\\\/2023\\\/07\\\/lamdba-vyrazy-954-600-listing.webp\",\"@id\":\"https:\\\/\\\/msgprogramator.sk\\\/en\\\/java-lambda\\\/#mainImage\",\"width\":954,\"height\":600,\"caption\":\"Got a problem with lambda expressions in Java? We can advise you on how to use them in programming.\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/msgprogramator.sk\\\/en\\\/java-lambda\\\/#mainImage\"},\"datePublished\":\"2023-07-07T16:00:21+00:00\",\"dateModified\":\"2025-10-04T09:19:00+00:00\"},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/msgprogramator.sk\\\/en\\\/#website\",\"url\":\"https:\\\/\\\/msgprogramator.sk\\\/en\\\/\",\"name\":\"msgprogramator.sk\",\"description\":\"Zamestnanie software developer\",\"inLanguage\":\"en-US\",\"publisher\":{\"@id\":\"https:\\\/\\\/msgprogramator.sk\\\/en\\\/#organization\"}}]}\n\t\t<\/script>\n\t\t<!-- All in One SEO Pro -->\r\n\t\t<title>Java Lambda Expressions and Their Uses in Coding - msgprogramator.sk<\/title>\n\n","aioseo_head_json":{"title":"Java Lambda Expressions and Their Uses in Coding - msgprogramator.sk","description":"Lambda expressions were added to Java in 2014. Using them brings many benefits to programming. We'll give you some advice on how to use them.","canonical_url":"https:\/\/msgprogramator.sk\/en\/java-lambda\/","robots":"max-image-preview:large","keywords":"","webmasterTools":{"google-site-verification":"dbeebLa6HN1i69h9Z_saKLQqOmKjP5gPLGWGplkHvfg","miscellaneous":""},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"BlogPosting","@id":"https:\/\/msgprogramator.sk\/en\/java-lambda\/#blogposting","name":"Java Lambda Expressions and Their Uses in Coding - msgprogramator.sk","headline":"Java Lambda Expressions: What are they and how do they work?","author":{"@id":"https:\/\/msgprogramator.sk\/en\/author\/jozef-wagnermsg-life-com\/#author"},"publisher":{"@id":"https:\/\/msgprogramator.sk\/en\/#organization"},"image":{"@type":"ImageObject","url":"https:\/\/msgprogramator.sk\/wp-content\/uploads\/2023\/07\/lamdba-vyrazy-954-600-listing.webp","width":954,"height":600,"caption":"Got a problem with lambda expressions in Java? We can advise you on how to use them in programming."},"datePublished":"2023-07-07T16:00:21+00:00","dateModified":"2025-10-04T09:19:00+00:00","inLanguage":"en-US","mainEntityOfPage":{"@id":"https:\/\/msgprogramator.sk\/en\/java-lambda\/#webpage"},"isPartOf":{"@id":"https:\/\/msgprogramator.sk\/en\/java-lambda\/#webpage"},"articleSection":"Java, Optional"},{"@type":"BreadcrumbList","@id":"https:\/\/msgprogramator.sk\/en\/java-lambda\/#breadcrumblist","itemListElement":[{"@type":"ListItem","@id":"https:\/\/msgprogramator.sk\/en\/#listItem","position":1,"name":"Home","item":"https:\/\/msgprogramator.sk\/en\/","nextItem":{"@type":"ListItem","@id":"https:\/\/msgprogramator.sk\/en\/java\/#listItem","name":"Java"}},{"@type":"ListItem","@id":"https:\/\/msgprogramator.sk\/en\/java\/#listItem","position":2,"name":"Java","item":"https:\/\/msgprogramator.sk\/en\/java\/","nextItem":{"@type":"ListItem","@id":"https:\/\/msgprogramator.sk\/en\/java-lambda\/#listItem","name":"Java Lambda Expressions: What are they and how do they work?"},"previousItem":{"@type":"ListItem","@id":"https:\/\/msgprogramator.sk\/en\/#listItem","name":"Home"}},{"@type":"ListItem","@id":"https:\/\/msgprogramator.sk\/en\/java-lambda\/#listItem","position":3,"name":"Java Lambda Expressions: What are they and how do they work?","previousItem":{"@type":"ListItem","@id":"https:\/\/msgprogramator.sk\/en\/java\/#listItem","name":"Java"}}]},{"@type":"Organization","@id":"https:\/\/msgprogramator.sk\/en\/#organization","name":"msgprogramator.sk","description":"Zamestnanie software developer","url":"https:\/\/msgprogramator.sk\/en\/"},{"@type":"Person","@id":"https:\/\/msgprogramator.sk\/en\/author\/jozef-wagnermsg-life-com\/#author","url":"https:\/\/msgprogramator.sk\/en\/author\/jozef-wagnermsg-life-com\/","name":"Jozef Wagner","image":{"@type":"ImageObject","@id":"https:\/\/msgprogramator.sk\/en\/java-lambda\/#authorImage","url":"https:\/\/secure.gravatar.com\/avatar\/fb7bc1666998c0b0e402c67fbc17b24501b12271659b4e71ffb7e4045d614cee?s=96&d=mm&r=g","width":96,"height":96,"caption":"Jozef Wagner"}},{"@type":"WebPage","@id":"https:\/\/msgprogramator.sk\/en\/java-lambda\/#webpage","url":"https:\/\/msgprogramator.sk\/en\/java-lambda\/","name":"Java Lambda Expressions and Their Uses in Coding - msgprogramator.sk","description":"Lambda expressions were added to Java in 2014. Using them brings many benefits to programming. We'll give you some advice on how to use them.","inLanguage":"en-US","isPartOf":{"@id":"https:\/\/msgprogramator.sk\/en\/#website"},"breadcrumb":{"@id":"https:\/\/msgprogramator.sk\/en\/java-lambda\/#breadcrumblist"},"author":{"@id":"https:\/\/msgprogramator.sk\/en\/author\/jozef-wagnermsg-life-com\/#author"},"creator":{"@id":"https:\/\/msgprogramator.sk\/en\/author\/jozef-wagnermsg-life-com\/#author"},"image":{"@type":"ImageObject","url":"https:\/\/msgprogramator.sk\/wp-content\/uploads\/2023\/07\/lamdba-vyrazy-954-600-listing.webp","@id":"https:\/\/msgprogramator.sk\/en\/java-lambda\/#mainImage","width":954,"height":600,"caption":"Got a problem with lambda expressions in Java? We can advise you on how to use them in programming."},"primaryImageOfPage":{"@id":"https:\/\/msgprogramator.sk\/en\/java-lambda\/#mainImage"},"datePublished":"2023-07-07T16:00:21+00:00","dateModified":"2025-10-04T09:19:00+00:00"},{"@type":"WebSite","@id":"https:\/\/msgprogramator.sk\/en\/#website","url":"https:\/\/msgprogramator.sk\/en\/","name":"msgprogramator.sk","description":"Zamestnanie software developer","inLanguage":"en-US","publisher":{"@id":"https:\/\/msgprogramator.sk\/en\/#organization"}}]},"og:locale":"en_US","og:site_name":"msgprogramator.sk - Zamestnanie software developer","og:type":"article","og:title":"Java Lambda Expressions and Their Uses in Coding - msgprogramator.sk","og:description":"Lambda expressions were added to Java in 2014. Using them brings many benefits to programming. We'll give you some advice on how to use them.","og:url":"https:\/\/msgprogramator.sk\/en\/java-lambda\/","og:image":"https:\/\/msgprogramator.sk\/wp-content\/uploads\/2023\/07\/lamdba-vyrazy-1200-630-shared.webp","og:image:secure_url":"https:\/\/msgprogramator.sk\/wp-content\/uploads\/2023\/07\/lamdba-vyrazy-1200-630-shared.webp","og:image:width":1200,"og:image:height":630,"article:published_time":"2023-07-07T16:00:21+00:00","article:modified_time":"2025-10-04T09:19:00+00:00","twitter:card":"summary_large_image","twitter:title":"Java Lambda Expressions and Their Uses in Coding - msgprogramator.sk","twitter:description":"Lambda expressions were added to Java in 2014. Using them brings many benefits to programming. We'll give you some advice on how to use them.","twitter:image":"https:\/\/msgtester.sk\/wp-content\/uploads\/2022\/10\/social-share-tester.jpg"},"aioseo_meta_data":{"post_id":"2905","title":"Java Lambda Expressions and Their Uses in Coding #separator_sa #site_title","description":"Lambda expressions were added to Java in 2014. Using them brings many benefits to programming. We'll give you some advice on how to use them.  ","keywords":null,"keyphrases":{"focus":{"keyphrase":"","score":0,"analysis":{"keyphraseInTitle":{"score":0,"maxScore":9,"error":1}}},"additional":[]},"primary_term":null,"canonical_url":null,"og_title":null,"og_description":null,"og_object_type":"default","og_image_type":"custom_image","og_image_url":"https:\/\/msgprogramator.sk\/wp-content\/uploads\/2023\/07\/lamdba-vyrazy-1200-630-shared.webp","og_image_width":"1200","og_image_height":"630","og_image_custom_url":"https:\/\/msgprogramator.sk\/wp-content\/uploads\/2023\/07\/lamdba-vyrazy-1200-630-shared.webp","og_image_custom_fields":null,"og_video":"","og_custom_url":null,"og_article_section":null,"og_article_tags":null,"twitter_use_og":false,"twitter_card":"default","twitter_image_type":"default","twitter_image_url":null,"twitter_image_custom_url":null,"twitter_image_custom_fields":null,"twitter_title":null,"twitter_description":null,"schema":{"blockGraphs":[],"customGraphs":[],"default":{"data":{"Article":[],"Course":[],"Dataset":[],"FAQPage":[],"Movie":[],"Person":[],"Product":[],"ProductReview":[],"Car":[],"Recipe":[],"Service":[],"SoftwareApplication":[],"WebPage":[]},"graphName":"BlogPosting","isEnabled":true},"graphs":[]},"schema_type":"default","schema_type_options":null,"pillar_content":false,"robots_default":true,"robots_noindex":false,"robots_noarchive":false,"robots_nosnippet":false,"robots_nofollow":false,"robots_noimageindex":false,"robots_noodp":false,"robots_notranslate":false,"robots_max_snippet":"-1","robots_max_videopreview":"-1","robots_max_imagepreview":"large","priority":null,"frequency":"default","local_seo":null,"seo_analyzer_scan_date":"2026-05-13 12:54:22","breadcrumb_settings":null,"limit_modified_date":false,"open_ai":"{\"title\":{\"suggestions\":[],\"usage\":0},\"description\":{\"suggestions\":[],\"usage\":0}}","ai":{"faqs":[],"keyPoints":[],"titles":[],"descriptions":[],"socialPosts":{"email":[],"linkedin":[],"twitter":[],"facebook":[],"instagram":[]}},"created":"2024-03-10 11:36:26","updated":"2026-05-13 12:54:22"},"aioseo_breadcrumb":"<div class=\"aioseo-breadcrumbs\"><span class=\"aioseo-breadcrumb\">\n\t<a href=\"https:\/\/msgprogramator.sk\/en\/\" title=\"Home\">Home<\/a>\n<\/span><span class=\"aioseo-breadcrumb-separator\">\u00a0&gt;\u00a0<\/span><span class=\"aioseo-breadcrumb\">\n\t<a href=\"https:\/\/msgprogramator.sk\/en\/java\/\" title=\"Java\">Java<\/a>\n<\/span><span class=\"aioseo-breadcrumb-separator\">\u00a0&gt;\u00a0<\/span><span class=\"aioseo-breadcrumb\">\n\tJava Lambda Expressions: What are they and how do they work?\n<\/span><\/div>","aioseo_breadcrumb_json":[{"label":"Home","link":"https:\/\/msgprogramator.sk\/en\/"},{"label":"Java","link":"https:\/\/msgprogramator.sk\/en\/java\/"},{"label":"Java Lambda Expressions: What are they and how do they work?","link":"https:\/\/msgprogramator.sk\/en\/java-lambda\/"}],"_links":{"self":[{"href":"https:\/\/msgprogramator.sk\/en\/wp-json\/wp\/v2\/posts\/2905","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/msgprogramator.sk\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/msgprogramator.sk\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/msgprogramator.sk\/en\/wp-json\/wp\/v2\/users\/14"}],"replies":[{"embeddable":true,"href":"https:\/\/msgprogramator.sk\/en\/wp-json\/wp\/v2\/comments?post=2905"}],"version-history":[{"count":7,"href":"https:\/\/msgprogramator.sk\/en\/wp-json\/wp\/v2\/posts\/2905\/revisions"}],"predecessor-version":[{"id":9202,"href":"https:\/\/msgprogramator.sk\/en\/wp-json\/wp\/v2\/posts\/2905\/revisions\/9202"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/msgprogramator.sk\/en\/wp-json\/wp\/v2\/media\/1824"}],"wp:attachment":[{"href":"https:\/\/msgprogramator.sk\/en\/wp-json\/wp\/v2\/media?parent=2905"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/msgprogramator.sk\/en\/wp-json\/wp\/v2\/categories?post=2905"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/msgprogramator.sk\/en\/wp-json\/wp\/v2\/tags?post=2905"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}