Can someone please help me with this? I am trying to write a java code that can sort 4 numbers in an increasing orders. I have written the following code but I dont know whats wrong with it. Sometimes it works and it actuallt sort the numbers other times it doesnt. For example if I enter 9 10 4 -2 it gives me 9 4 -2 10.

public class firstHomework {

public static void main(String[] args) {

java.util.Scanner input = new java.util.Scanner(System.in);

System.out.print("Enter four integers: ");

int number1 = input.nextInt();

int number2 = input.nextInt();

int number3 = input.nextInt();

int number4 = input.nextInt();

if (number1 > number2) {

int temp = number1;

number1 = number2;

number2 = temp;

}

if (number2 > number3) {

int temp = number2;

number2 = number3;

number3 = temp;

}

if (number3 > number4) {

int temp = number3;

number3 = number4;

number4 = temp;

}

System.out.println("The sorted numbers are "

+ number1 + " " + number2 + " " + number3 + " " + number4 + " ");

}

}