{"id":42,"date":"2023-08-31T07:59:56","date_gmt":"2023-08-31T07:59:56","guid":{"rendered":"http:\/\/example.com\/?p=34"},"modified":"2023-08-31T07:59:56","modified_gmt":"2023-08-31T07:59:56","slug":"34-map-foreach-java","status":"publish","type":"post","link":"https:\/\/w2.geleleger.nl\/rhcuk-34-map-foreach-java-esknvp\/","title":{"rendered":"Map Foreach Java"},"content":{"rendered":"<div class=\"387480d42754320bb6f0e83bf7886d44\" data-index=\"1\" style=\"float: none; margin:10px 0 10px 0; text-align:center;\">\n<script type=\"text\/javascript\">\r\n\tatOptions = {\r\n\t\t'key' : '4a1f1119f949a4af74d56b8a3af8b867',\r\n\t\t'format' : 'iframe',\r\n\t\t'height' : 250,\r\n\t\t'width' : 300,\r\n\t\t'params' : {}\r\n\t};\r\n\tdocument.write('<scr' + 'ipt type=\"text\/javascript\" src=\"http' + (location.protocol === 'https:' ? 's' : '') + ':\/\/bleedingofficecontagion.com\/4a1f1119f949a4af74d56b8a3af8b867\/invoke.js\"><\/scr' + 'ipt>');\r\n<\/script>\n<\/div>\n\n<p><strong>Map Foreach Java<\/strong>. <strong>Let&#39;s have a closer look at a few of these. Overview In this quick tutorial, we&#39;ll look at the different ways of iterating through the entries of a Map in Java. In short, foreach is for applying an operation on each element of a collection of elements, whereas map is for transforming one collection into another. Simply put, we can extract the contents of a Map using entrySet (), keySet (), or values (). The order of a map is defined as the order in which the iterators on the map&#39;s collection views return their elements. Returns a Set view of the keys contained in this map. That is, the operation may do nothing, may have a side-effect. Entry&lt;K, V&gt;&gt;) of the mappings contained in this map.<\/strong><\/p>\n<p><figure> \t\t<img decoding=\"async\" src=\"https:\/\/img-blog.csdn.net\/20160306211342467\" alt=\"Java\u8fed\u4ee3foreach\u539f\u7406\u89e3\u6790\uff08java.util.ConcurrentModificationException\u7684\u539f\u56e0\uff09_\u5927\u6811\u5148\u751f\u7684\u535a\u5ba2 ...\" style=\"width: 100%; padding: 5px; background-color: grey;\"><figcaption>Java\u8fed\u4ee3foreach\u539f\u7406\u89e3\u6790\uff08java.util.ConcurrentModificationException\u7684\u539f\u56e0\uff09_\u5927\u6811\u5148\u751f\u7684\u535a\u5ba2 &#8230; (Lydia George)<\/figcaption><\/figure>\n<p> \t \t<strong>Map Foreach Java<\/strong>. <strong>Java forEach is used to execute a set of statements for each element in the collection. Entry&lt;K, V&gt;&gt;) of the mappings contained in this map. Using BiConsumer, an action can be performed on both the key and value of a map simultaneously. A key in the Map may only occur once; it is unique in the Map&#39;s collection. The order of a map is defined as the order in which the iterators on the map&#39;s collection views return their elements.<\/strong> Map Foreach Java. <\/p>\n<h3>The returning value The first difference between map () and forEach () is the returning value.<\/h3>\n<p>Iterating over Map.entrySet () using For-Each loop : Map.entrySet () method returns a collection-view ( Set&lt;Map.<\/p>\n<div style=\"display: grid;grid-template-columns: auto auto auto; background: #eee; \">\n<div style=\"padding: 1em;\"> \t\t        <a href=\"https:\/\/www.seventheluck.com\/images\/my_posts\/java_collection_map\/map1.jpg\"><img decoding=\"async\" src=\"https:\/\/www.seventheluck.com\/images\/my_posts\/java_collection_map\/map1.jpg\" onerror=\"this.onerror=null;this.src='https:\/\/tse2.mm.bing.net\/th?id=OIP.OQOm2xVTjtAXNFXzxRaCnAHaBp&amp;pid=Api';\" style=\"width:100%;margin-top: 8px;vertical-align: middle;\"><\/a> \t\t        <\/p>\n<p>Java Map Entryset Foreach<\/p>\n<\/p><\/div>\n<div style=\"padding: 1em;\"> \t\t        <a href=\"https:\/\/codedestine.com\/wp-content\/uploads\/2016\/12\/forEach.png\"><img decoding=\"async\" src=\"https:\/\/codedestine.com\/wp-content\/uploads\/2016\/12\/forEach.png\" onerror=\"this.onerror=null;this.src='https:\/\/tse3.mm.bing.net\/th?id=OIP.3I_0kJETctfmSaHKnMaHOgAAAA&amp;pid=Api';\" style=\"width:100%;margin-top: 8px;vertical-align: middle;\"><\/a> \t\t        <\/p>\n<p>Java 8 forEach method Example | Java 8 Stream API<\/p>\n<\/p><\/div>\n<div style=\"padding: 1em;\"> \t\t        <a href=\"https:\/\/tutorias.co\/wp-content\/uploads\/2019\/08\/recorridoEficienteMatrizForeachJava-768x489.jpg\"><img decoding=\"async\" src=\"https:\/\/tutorias.co\/wp-content\/uploads\/2019\/08\/recorridoEficienteMatrizForeachJava-768x489.jpg\" onerror=\"this.onerror=null;this.src='https:\/\/tse4.mm.bing.net\/th?id=OIP.5WwDrwlExMdhVTGaygI9XwHaEt&amp;pid=Api';\" style=\"width:100%;margin-top: 8px;vertical-align: middle;\"><\/a> \t\t        <\/p>\n<p>arrays &#8211; java (recorrido eficiente matriz con foreach) | Tutorias.co<\/p>\n<\/p><\/div>\n<\/p><\/div>\n<div style=\"display: grid;grid-template-columns: auto auto auto; background: #eee; \">\n<div style=\"padding: 1em;\"> \t\t        <a href=\"http:\/\/i.ytimg.com\/vi\/mpLGGNWolnc\/maxresdefault.jpg\"><img decoding=\"async\" src=\"http:\/\/i.ytimg.com\/vi\/mpLGGNWolnc\/maxresdefault.jpg\" onerror=\"this.onerror=null;this.src='https:\/\/tse1.mm.bing.net\/th?id=OIP.AAqSBDRbFOAkdelw9BedwAHaEK&amp;pid=Api';\" style=\"width:100%;margin-top: 8px;vertical-align: middle;\"><\/a> \t\t        <\/p>\n<p>Java 8 tutorial 15 (Streams) &#8211; map, filter, forEach, &amp; toArray Stream &#8230;<\/p>\n<\/p><\/div>\n<div style=\"padding: 1em;\"> \t\t        <a href=\"https:\/\/static.javatpoint.com\/images\/core\/java-map-hierarchy.png\"><img decoding=\"async\" src=\"https:\/\/static.javatpoint.com\/images\/core\/java-map-hierarchy.png\" onerror=\"this.onerror=null;this.src='https:\/\/tse4.mm.bing.net\/th?id=OIP.Jmln9_FnyS8AcZBAp5NDYgHaHc&amp;pid=Api';\" style=\"width:100%;margin-top: 8px;vertical-align: middle;\"><\/a> \t\t        <\/p>\n<p>Collections in Java: &#8211; Nandhinidevi<\/p>\n<\/p><\/div>\n<div style=\"padding: 1em;\"> \t\t        <a href=\"https:\/\/camo.qiitausercontent.com\/c9e3b73108fab5a6cb5e173a6154d9d281a64f4e\/68747470733a2f2f71696974612d696d6167652d73746f72652e73332e616d617a6f6e6177732e636f6d2f302f3135373330392f62383866646335322d646137332d613531312d306236622d3261303464613937303336312e706e67\"><img decoding=\"async\" src=\"https:\/\/camo.qiitausercontent.com\/c9e3b73108fab5a6cb5e173a6154d9d281a64f4e\/68747470733a2f2f71696974612d696d6167652d73746f72652e73332e616d617a6f6e6177732e636f6d2f302f3135373330392f62383866646335322d646137332d613531312d306236622d3261303464613937303336312e706e67\" onerror=\"this.onerror=null;this.src='https:\/\/tse1.mm.bing.net\/th?id=OIP.95-83vZSKifxppj7DTsWXwHaC5&amp;pid=Api';\" style=\"width:100%;margin-top: 8px;vertical-align: middle;\"><\/a> \t\t        <\/p>\n<p>forEach vs map in JavaScript &#8211; Qiita<\/p>\n<\/p><\/div>\n<\/p><\/div>\n<div style=\"display: grid;grid-template-columns: auto auto auto; background: #eee; \">\n<div style=\"padding: 1em;\"> \t\t        <a href=\"https:\/\/3.bp.blogspot.com\/-AUm8QUWJ3eY\/WSwsZM-JNXI\/AAAAAAAAPWs\/rCULy4JoBssAqYQSBHqL9XIvrI7qtNYZACLcB\/s1600\/Java%2BTutorial-%2BLambda%2Bexpression%2Bin%2Bjava%2B%2BJava%2BLambda%2Bexpressions%255BforEach%2Bmethod%2Bof%2BMap%255D.jpg\"><img decoding=\"async\" src=\"https:\/\/3.bp.blogspot.com\/-AUm8QUWJ3eY\/WSwsZM-JNXI\/AAAAAAAAPWs\/rCULy4JoBssAqYQSBHqL9XIvrI7qtNYZACLcB\/s1600\/Java%2BTutorial-%2BLambda%2Bexpression%2Bin%2Bjava%2B%2BJava%2BLambda%2Bexpressions%255BforEach%2Bmethod%2Bof%2BMap%255D.jpg\" onerror=\"this.onerror=null;this.src='https:\/\/tse1.mm.bing.net\/th?id=OIP.KtejnyKpGOsrdJqYdAyRUAHaEK&amp;pid=Api';\" style=\"width:100%;margin-top: 8px;vertical-align: middle;\"><\/a> \t\t        <\/p>\n<p>JAVA EE: Java Tutorial: Lambda expression in java | Java Lambda &#8230;<\/p>\n<\/p><\/div>\n<div style=\"padding: 1em;\"> \t\t        <a href=\"https:\/\/zsrimg.ikafan.com\/file_images\/article\/202109\/2021092616202396.png\"><img decoding=\"async\" src=\"https:\/\/zsrimg.ikafan.com\/file_images\/article\/202109\/2021092616202396.png\" onerror=\"this.onerror=null;this.src='https:\/\/tse2.mm.bing.net\/th?id=OIP.mHvj9apUkvh6bND5WC0fpgHaCp&amp;pid=Api';\" style=\"width:100%;margin-top: 8px;vertical-align: middle;\"><\/a> \t\t        <\/p>\n<p>java map foreach \u5b57\u7b26\u4e32\u62fc\u63a5 \/ \u5f20\u751f\u8363<\/p>\n<\/p><\/div>\n<div style=\"padding: 1em;\"> \t\t        <a href=\"https:\/\/gpcoder.com\/wp-content\/uploads\/2018\/05\/java-8-foreach-loop-iterable.png\"><img decoding=\"async\" src=\"https:\/\/gpcoder.com\/wp-content\/uploads\/2018\/05\/java-8-foreach-loop-iterable.png\" onerror=\"this.onerror=null;this.src='https:\/\/tse2.mm.bing.net\/th?id=OIP.VrRUfMdRrpjeKMAQLdOovAHaFD&amp;pid=Api';\" style=\"width:100%;margin-top: 8px;vertical-align: middle;\"><\/a> \t\t        <\/p>\n<p>Ph\u01b0\u01a1ng th\u1ee9c forEach() trong java 8 &#8211; GP Coder (L\u1eadp tr\u00ecnh Java)<\/p>\n<\/p><\/div>\n<\/p><\/div>\n<div style=\"display: grid;grid-template-columns: auto auto auto; background: #eee; \">\n<div style=\"padding: 1em;\"> \t\t        <a href=\"https:\/\/i.ytimg.com\/vi\/owN8Y7SKCt4\/maxresdefault.jpg\"><img decoding=\"async\" src=\"https:\/\/i.ytimg.com\/vi\/owN8Y7SKCt4\/maxresdefault.jpg\" onerror=\"this.onerror=null;this.src='https:\/\/tse4.mm.bing.net\/th?id=OIP.OjO-qrfcXeRMyjzLFOEQHgHaEK&amp;pid=Api';\" style=\"width:100%;margin-top: 8px;vertical-align: middle;\"><\/a> \t\t        <\/p>\n<p>Iterate Through A Map Java &#8211; Maping Resources<\/p>\n<\/p><\/div>\n<div style=\"padding: 1em;\"> \t\t        <a href=\"https:\/\/media.cheggcdn.com\/media\/8a8\/8a8c52dc-d4b1-4c58-8bd4-ff6c131ad516\/phpZ9VSOH.png\"><img decoding=\"async\" src=\"https:\/\/media.cheggcdn.com\/media\/8a8\/8a8c52dc-d4b1-4c58-8bd4-ff6c131ad516\/phpZ9VSOH.png\" onerror=\"this.onerror=null;this.src='https:\/\/tse4.mm.bing.net\/th?id=OIP.SOof6S988TStCBns7A_-wwHaEU&amp;pid=Api';\" style=\"width:100%;margin-top: 8px;vertical-align: middle;\"><\/a> \t\t        <\/p>\n<p>Java Map Entryset Foreach<\/p>\n<\/p><\/div>\n<div style=\"padding: 1em;\"> \t\t        <a href=\"https:\/\/christosploutarchou.com\/wp-content\/uploads\/2020\/04\/speedTesty-1024x308.png\"><img decoding=\"async\" src=\"https:\/\/christosploutarchou.com\/wp-content\/uploads\/2020\/04\/speedTesty-1024x308.png\" onerror=\"this.onerror=null;this.src='https:\/\/tse1.mm.bing.net\/th?id=OIP.jmvPyXaZFND1wwPuawCfTAHaCO&amp;pid=Api';\" style=\"width:100%;margin-top: 8px;vertical-align: middle;\"><\/a> \t\t        <\/p>\n<p>.map() vs .forEach()<\/p>\n<\/p><\/div>\n<\/p><\/div>\n<p><strong>Map Foreach Java<\/strong>. <strong>Map objects are collections of key-value pairs. This sort of behavior is acceptable because the forEach() method is used to change the program&#39;s state via side-effects, not explicit return types. Overview In this quick tutorial, we&#39;ll look at the different ways of iterating through the entries of a Map in Java. Iterator &#8211;it&#39;s syntactic sugar for the same thing. The Map interface provides three collection views, which allow a map&#39;s contents to be viewed as a set of keys.<\/p>\n<p><\/strong> Map Foreach Java.<\/p>\n<div class=\"387480d42754320bb6f0e83bf7886d44\" data-index=\"2\" style=\"float: none; margin:10px 0 10px 0; text-align:center;\">\n<script type=\"text\/javascript\">\r\n\tatOptions = {\r\n\t\t'key' : '4a1f1119f949a4af74d56b8a3af8b867',\r\n\t\t'format' : 'iframe',\r\n\t\t'height' : 250,\r\n\t\t'width' : 300,\r\n\t\t'params' : {}\r\n\t};\r\n\tdocument.write('<scr' + 'ipt type=\"text\/javascript\" src=\"http' + (location.protocol === 'https:' ? 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In short, foreach is for applying an operation on each element of a collection of elements, whereas map is for transforming&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/w2.geleleger.nl\/wp-json\/wp\/v2\/posts\/42"}],"collection":[{"href":"https:\/\/w2.geleleger.nl\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/w2.geleleger.nl\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/w2.geleleger.nl\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/w2.geleleger.nl\/wp-json\/wp\/v2\/comments?post=42"}],"version-history":[{"count":0,"href":"https:\/\/w2.geleleger.nl\/wp-json\/wp\/v2\/posts\/42\/revisions"}],"wp:attachment":[{"href":"https:\/\/w2.geleleger.nl\/wp-json\/wp\/v2\/media?parent=42"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/w2.geleleger.nl\/wp-json\/wp\/v2\/categories?post=42"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/w2.geleleger.nl\/wp-json\/wp\/v2\/tags?post=42"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}