2) 实现字符串组合,如[“ab”,“2”]通过"&&“分隔符,组成字符串"ab&&2”
解题思路:
将数组遍历出来后拼接一下字符串
//接口
import java.util.ArrayList;
public interface Persons {
String separate(String[] st);
}
//继承实现代码
import java.util.ArrayList;
public class Demo02 implements Persons{
public static void main(String[] args) {
//测试
Demo02 de = new Demo02();
String [] st = {"ass","asdasd"};
System.out.println(de.separate(st));
}
@Override
public String separate(String[]st) {
// TODO Auto-generated method stub
String s,t,a = null;
for (int i = 0; i <st.length-1; i++) {
s=st[i];
t=st[i+1];
a = s+"&&"+t;
}
return a;
}
}