int[] array = { 1,2,3};for(intelement : array) { System.out.print(element); } 中断循环 myLoop:for(inti = 0, j = 0; i < 10; i++) {while(++j < 10) {breakmyLoop;//end forcontinuemyLoop;//start next for} }
In the following program, we are iterating over an array ofintvalues. The array contains 5 elements so the loop will iterate 5 times, once for each value in the array. int[]array=newint[]{0,1,2,3,4};for(inti=0;i<array.length;i++){System.out.format("Value at index %d is %d...
// 使用双括弧语法(double-brace syntax)建立并初始化一个ListListuserNames=newArrayList(){{add("Hollis");add("hollis");add("HollisChuang");add("H");}};for(inti=0;iif(userNames.get(i).equals("Hollis")){userNames.remove(i);}}System.out.println(userNames); 1. 2. 3. 4. 5. 6. 7...
Syntax for (type variable : arrayname) { ... } The following example outputs all elements in the cars array, using a "for-each" loop:Example String[] cars = {"Volvo", "BMW", "Ford", "Mazda"}; for (String i : cars) { System.out.println(i); } Try it Yourself » ...
Line 10 defines the data array A(I). The FOR … NEXT loop in lines 20–40 loads 10 values into the array, from the DATA statements in lines 50 and 60. The mean value is calculated by the subroutine in lines 500–560. This subroutine is called via the GOSUB command and is ...
REPL,即Read-Evaluate-Print-Loop的简称。由于Scala语言的特性和优势在小型应用程序到大型应用程序市场大受追捧,于是引来 Oracle 的关注,并尝试将大多数 Scala 功能集成到 Java 中。这在 Java 8 中已经完成一部分,比如 Lambda 表达式。 Scala 的最佳功能之一就是 REPL,这是一个命令行界面和 Scala解释器,用于执行 ...
ForLoopTree SwitchTree SynchronizedTree EnhancedForLoopTree LabeedStatementTree AssertTree EmptyStatementTree IfTree ExpressionStatementTree CatchTree MethodTree ArrayTypeTree UnionTypeTree ModifiersTree ParameterizedTypeTree CaseTree ExpressionTree (一个非完整的语句,比如简单的"a = 1",注意最后没有“;”) ...
一、foreach循环 foreach循环(Foreach loop)是计算机编程语言中的一种控制流程语句,通常用来循环遍历数组或集合中的元素。 Java语言从JDK 1.5.0开始引入foreach循环。在遍历数组、集合方面,foreach为开发人员提供了极大的方便。通常也被称之为增强for循环。
See Chapter 20 for a discussion of the syntax of XML. For now, note that the <!-- begins an XML comment, which extends to the -->. Example 1-1. Ant example file (build.xml) <project name="Java Cookbook Examples" default="compile" basedir="."> <!-- Set global properties for ...