java学习笔记（七）：for循环

java的for循环和c++的for循环类似

public class Test {
   public static void main(String args[]) {
      for(int x = 10; x < 20; x = x+1) {
         System.out.print("value of x : " + x );
         System.out.print("\n");
      }
   }
}

运行输出：

value of x : 10
value of x : 11
value of x : 12
value of x : 13
value of x : 14
value of x : 15
value of x : 16
value of x : 17
value of x : 18
value of x : 19

 

Java 引入了一种主要用于数组的增强型 for 循环。

public class Puppy{
    public static void main(String[] args){
        int[] Nums = {10,20,30,40,50,60};
        for(int x : Nums){
            System.out.print(x);
            System.out.print(",");
        }

        System.out.println();
        String[] Names = {"Jacky","Tom","Lily"};
        for(String name : Names){
            System.out.print(name);
            System.out.print(',');
        }
    }
}

运行输出：

10,20,30,40,50,60,
Jacky,Tom,Lily,