Hogyan tudom ismételtetni az alábbi kódot? Ez így egyszer le fut ,de arra lenne szükségem,hogy ne álljon le hanem kezdje elölről.

import java.util.Scanner;

public class prac1 {

public static void main(String[] args) {

Scanner scanner = new Scanner(System.in);

int number1 = 1;

int sum = 0;

boolean hasGoodInput;

do {

System.out.print("please enter a number: ");

hasGoodInput = scanner.hasNextInt();

if (hasGoodInput) {

number1 = scanner.nextInt();

}

scanner.nextLine();

} while (!hasGoodInput);

for (int i = 1; i < number1; i++) {

if (number1 % i == 1) {

sum = sum + i;

}

}

if (sum == number1) {

if (number1 == 1) {

}

System.out.print(" Is a Perfect Number");

} else {

System.out.print(" Is not a perfect number");

}

do {

System.out.print("\n" + "Please enter another number: ");

hasGoodInput = scanner.hasNextInt();

if(hasGoodInput) {

number1 = scanner.nextInt();

}

scanner.nextLine();

} while(!hasGoodInput);

}

}