两个String数组 合并成一个数组

Question

如题所述

Answer 1

import java.util.Arrays;

//Java中如何把两个数组合并为一个
public class gog {
public static void main(String[] args) {
String [] str1 = {"J","a","v","a","中"};
String [] str2 = {"如","何","把","两","个","数","组","合","并","为","一","个"};

int strLen1=str1.length;//保存第一个数组长度
int strLen2=str2.length;//保存第二个数组长度
str1= Arrays.copyOf(str1,strLen1+ strLen2);//扩容
System.arraycopy(str2, 0, str1, strLen1,strLen2 );//将第二个数组与第一个数组合并
System.out.println(Arrays.toString(str1));//输出数组

}
}

Answer 2

public class Array {
 
    public static void main(String[] args) {
      
        //方法有很多，这个是最通俗的，理解好久行
        String[] a=new String[10];
        String[] b=new String[10];
        String[] c=new String[25];
        
        for(int i=0;i<a.length;i++){
            a[i]="aa";
            c[i]=a[i];
        }
        for(int i=0;i<b.length;i++){
            b[i]="bb";
            c[a.length+i]=b[i];
        }
        
        System.out.println("合并后：");
        for(String cc:c){
            System.out.print(cc+"  ");
        }
        
    }
 
}