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                ??一站式輕松地調用各大LLM模型接口,支持GPT4、智譜、豆包、星火、月之暗面及文生圖、文生視頻 廣告
                # Java 8 Lambda 列表`foreach` > 原文: [https://javabeginnerstutorial.com/core-java-tutorial/java-8-lambda-foreach-list/](https://javabeginnerstutorial.com/core-java-tutorial/java-8-lambda-foreach-list/) 您一定已經聽說過 Java 8 中引入的 Lambda 表達式。很快,我們將介紹有關它的詳細主題。 但是現在在本文中,我將展示如何使用 Lambda 表達式來迭代`List`集合。 如果要遍歷`Map`,可以查看 [Java 8 lambda 映射`foreach`](https://javabeginnerstutorial.com/core-java-tutorial/java-8-lambda-foreach-map/)文章。 ### 清單 1:使用`for`循環進行迭代 ```java class java_forLoop_list { public static void main(String[] args) { List<String> jbtObjs = new ArrayList<>(); jbtObjs.add("Java"); jbtObjs.add("Beginners"); jbtObjs.add("Tutorial"); for(int i=0; i<jbtObjs.size();i++){ System.out.println(jbtObjs.get(i));; } Iterator i = jbtObjs.iterator(); while (i.hasNext()) { String name = (String) i.next(); System.out.println(name); } } } ``` ### 清單 2:使用增強的`for`循環(Java 5)進行迭代 ```java class java_5_enhancedForLoop_list { public static void main(String[] args) { List<String> jbtObjs = new ArrayList<>(); jbtObjs.add("Java"); jbtObjs.add("Beginners"); jbtObjs.add("Tutorial"); for (String jbtObj : jbtObjs) { System.out.println(jbtObj); } } } ``` ### 清單 3:Java 8 Lambda `forEach` ```java public class java_8_forEach_list { public static void main(String[] args) { List<String> jbtObjs = new ArrayList<>(); jbtObjs.add("Java"); jbtObjs.add("Beginners"); jbtObjs.add("Tutorial"); jbtObjs.forEach(name -> System.out.println(name)); } } ```
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