1、准备源文件

MergeArray.java

package com.w;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;

public class MergeArray {
    public  Object[] merge(String[] a, String[] b) {
        List list = new ArrayList(Arrays.asList(a));
        list.addAll(Arrays.asList(b));
        Object[] c = list.toArray();
        return c;
    }
}

Test.java

package com.w;

public class Test {

    public static void main(String[] args) {
        String[] a = {"A", "E", "I"};
        String[] b = {"O", "U"};
        MergeArray ma = new MergeArray();
        Object[] c = ma.merge(a,b);

        for(int i=0; i<c.length; i++) {
            System.out.println(c[i]);
        }
    }
}