Question

java语言a和b数组都是有序的,验证a数组中有b数组的元素

Answer 1

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

public class SS {

public static void main(String[] args) {
String[] a = {"m", "v", "c"};
String[] b = {"c", "b", "a"};
System.out.println( exists(a, b) );
}

public static boolean exists(String[] a, String[] b) {
List<String> aList = Arrays.asList(a);
for (String tmp : b) {
if (aList.contains(tmp)) {
return true;
}
}
return false;
}
}

Answer 2

public static void main(String[] args) {
int[] a = new int[]{1,2,3,8};
int[] b = new int[]{1,2,3,4,5,6};

for(int i=0;i<b.length;i++){
for(int j=0;j<a.length;j++){
if(a[j]==b[i]){
System.out.println(b[i]);
}
}
}
}

Answer 3

for(int i=0;i<b.length;i++){
    for(int j=0;j<a.length;j++){
        if(a[j]==b[i]){
        System.out.println("存在相同元素，a数组下标"+j+"，值为"+a[j]);
        }
    }
}

Answer 4

两个for循环构成嵌套循环

Answer 5

java 双层for循环即可