求教学数组,太过于复杂

定义数组
int a[]={11,22,33,44,55,66,77,88}
int b[]={1,2,3,4,5}
定义一个新的数组sum[]
将这两个数的值放在新的数组里面


public class ArraySum {
    public static void main(String[] args) {
        int a[]={11,22,33,44,55,66,77,88};
        int b[]={1,2,3,4,5};
        int[] sum = new int[a.length+b.length];
        int index = 0;
        for (int i = 0; i < a.length; i++) { // 将数组a放到sum中
            sum[index++] = a[i];
        }
        for (int i = 0; i < b.length; i++) { // 将数组b放到sum中
            sum[index++] = b[i];
        }
        for (int i = 0; i < sum.length; i++) { // 遍历打印sum数组
            System.out.print(sum[i]+" ");
        }

    }