报错,怎么回事?
public class String {
public static void main(String[] xzx){
Scanner input=new Scanner(System.in);
StringBuffer one=new StringBuffer("start");
String b=input.next();
for (int a=1;a<5;a++){
one.append(b);
System.out.println(one);
}
}
}
运行不了
系统显示:Type mismatch: cannot convert from String to String
大家帮我看看