java-数组-拷贝数组

java-数组-拷贝数组

public class ArrayExercise02{
	public static void main(String[] args){
		//数组的拷贝
		int arr1[] = {10,20,30};
		//创建一个新的数组
		//大小arr1.length
		int arr2[] = new int [arr1.length];
		//循环遍历赋值
		for (int i=0 ;i<arr1.length ;i++ ) {
			arr2[i] =arr1[i];
		}
		//循环遍历输出
		for (int i=0;i<arr2.length ; i++) {
			System.out.print(arr2[i]+" ");
		}
	}
}