import java.util.Scanner;
public class mima {
public static void main(String[] args) {
Scanner $$=new Scanner(System.in);
System.out.println("欢迎来到本软件");
System.out.println("请输入原密码");
String yuan=$$.next();
System.out.println("请输入新密码");
String xin=$$.next();
String c=mima(yuan,xin);
if(c=="123456dpf"){
System.out.println("原密码未改");
}else{
System.out.println("修改成功");
System.out.println("新密码是"+c);
}
}
public static String mima(String a, String b){
String yuan="123456dpf";
if(yuan.equals(a)){
if(a.length()>=6){
a=b;
System.out.println("密码修改成功");
}else{
System.out.println("密码长度不足6位");
a="123456dpf";
}
}else{
System.out.println("原始密码输入错误");
a="123456dpf";
}
return a;
}
}
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