publicclassTestArray2{publicstaticvoidmain(String args[]){//定义一个一维数组 int arr[]=newint[4]; System.out.println("----未赋值前输出刚刚定义的数组----");for(int x : arr){ System.out.println(x);}//通过索引给数组元素赋值 System.out.println("----通过循环变量给数组元素赋值----");for(int i =3; i >0; i--){ arr[i]= i;}//循环输出创建的数组 System.out.println("----赋值后,foreach输出创建好的数组----");for(int x : arr){ System.out.println(x);}} }
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