Hello Friend,

Try this:

import java.util.*;
class Box{
public void check(Scanner input,int key){
if(key<5){
    System.out.println("Error!Enter another key (>=5): ");
    key=input.nextInt();
    }
    for(int i=1;i<=2;i++){
        for(int j=1;j<=key;j++){
            System.out.print(key);
        }
        System.out.print(" ");
    }
    int n=key-4;
    int c=n*2;
    for(int i=1;i<=c;i++){
    for(int j=1;j<=2;j++){
        System.out.print(key);
    }
    System.out.print(" ");
}
for(int i=1;i<=2;i++){
        for(int j=1;j<=key;j++){
            System.out.print(key);
        }
        System.out.print(" ");
    }
}
}
public class HollowBox{
public static void main(String[] args){
    Box b=new Box();
    Scanner input=new Scanner(System.in);
    int menu = 0;
System.out.println("Choose Option");
System.out.println("1. Draw");
System.out.println("2. Exit");
boolean quit = false;
do{
System.out.println();
System.out.print("Please enter your choice: ");
menu = input.nextInt();
System.out.println();

    switch(menu) {
case 1:
    System.out.println("Enter key (>=5): ");
    int key=input.nextInt();
    b.check(input,key);
    break;
case 2:
    quit = true;
    break;
     }
    }
    while (!quit);
}
}

Thanks

thx so much buddy.... so helpfull ^^