import java.util.*;
public class A3{
public static void main(String[] args){
Scanner in=new Scanner(System.in);
String B="";
do{
System.out.println("是否继续:"+"(yes\no)");
String B=in.next();
}
while(B.equals("yes"));
}
}
报错的内容:Exception in thread "main" java.lang.Error: Unresolved compilation problem:
Duplicate local variable B