用for循环遍历数组(array)的例子: 在这里,我们使用for循环遍历和显示数组里面的每个元素。 classForLoopExample3 { publicstaticvoidmain(String args[]){ intarr[]={2,11,45,9}; //i starts with 0 as array index starts with 0 too for(inti=0; i<arr.length; i++){ System.out.println(arr[i]...
public static void main(String[] args){ for(int i = 0;i<4;i++){ System.out.println("hello java"); } } } 1. 2. 3. 4. 5. 6. 7. root@debian:/home/jeff/java_coding/day004# java myfor hello java hello java hello java hello java 1. 2. 3. 4. 5. for循环执行过程 class...
以下是一个使用for循环计算数组元素总和的示例: publicclassArraySum{publicstaticvoidmain(String[]args){int[]numbers={1,2,3,4,5};intsum=0;for(inti=0;i<numbers.length;i++){sum+=numbers[i];}System.out.println("数组元素总和: "+sum);}} 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. ...
classForLoopExample3 { publicstaticvoidmain(String args[]){ intarr[]={2,11,45,9}; //i starts with 0 as array index starts with 0 too for(inti=0; i<arr.length; i++){ System.out.println(arr[i]); } } } 输出: 1 2 3 4 2 11 45 9 增强型for循环 当您想要遍历数组/集合里面...
2. Java for-each循环 for-each循环用于在java中遍历数组或集合。它比简单的for循环更容易使用,因为不需要递增值和使用下标符号。 语法: for(Typevar:array){//code to be executed} Java 示例: publicclassForEachExample{publicstaticvoidmain(String[] args){intarr[] = {12,23,44,56,78};for(inti : ...
for(typevar:array){statements usingvar;} 示例 代码语言:javascript 代码运行次数:0 运行 AI代码解释 for(int i=0;i<arr.length;i++){typevar=arr[i];statements usingvar;} 应用到 fori 的例子 代码语言:javascript 代码运行次数:0 运行 AI代码解释 ...
for (String s : list) { if (s != null) { System.out.println(s.toUpperCase()); } } AI代码助手复制代码 2.2ArrayIndexOutOfBoundsException ArrayIndexOutOfBoundsException通常发生在尝试访问数组的无效索引时。在for循环中,这种异常可能出现在以下几种情况: ...
public class HelloWorld { public static void main(String []args) { loop: for (int...
When you know exactly how many times you want to loop through a block of code, use the for loop instead of a while loop:SyntaxGet your own Java Server for (statement 1; statement 2; statement 3) { // code block to be executed }...
//程序打印一个句子十次 class Loop { public static void main(String[] args) { for (int i = 1; i <= 10; ++i) { System.out.println("Line " + i); } } } 输出: Line 1 Line 2 Line 3 Line 4 Line 5 Line 6 Line 7 Line 8 Line 9 Line 10 在上面的示例中,我们有 ...