java基础补充
lang包下的类是不用导
字符串表示内容相不相等str.equals()
“==”比较的是内存地址,不能用来比较字符串
字符串数组调用length方法
str.indexof()返回数组下标
str.substring()看参数截取字符串
substring只截开头不截结果
package aab;
import java.util.Scanner;
public class Test02 {
public static void main(String[] args) {
String[] sss=new String[]{"欧阳","太史","端木","上官","司马","东方","独孤","南宫","万俟","闻人","夏侯"};
System.out.println("请输入姓名");
int flag=0;
Scanner sc=new Scanner(System.in);
String str=sc.next();
String str2=str.substring(0,2);
for(int i=0;i<sss.length;i++)
{
if(str2.equals(sss[i]))
{
flag=1;
System.out.println("姓:"+str2);
System.out.println("名:"+str.substring(2,str.length()));
}
}
if(flag==0)
{
System.out.println("姓:"+str.substring(0,1));
str=str.substring(1,str.length());
System.out.println("名:"+str);
}
// System.out.println("姓:"+str.substring(0,1));
// str=str.substring(1,str.length());
// System.out.println("名:"+str);
}
}