Lab Finding the max of three numbers

import java.util.Scanner;

public class MaxOfThreeNumbers
{
public static void main(String[] args)
{
Scanner keyboard = new Scanner (System.in);
System.out.println("Enter three number:");

int firstNumber = keyboard.nextInt();
int secondNumber = keyboard.nextInt();
int thirdNumber = keyboard.nextInt();
int temp=firstNumber;

if(secondNumber>=temp)
{temp=secondNumber;}
if(thirdNumber>=temp)
{temp=thirdNumber;}

System.out.println("the max of three number is : "+temp);
}
}

結果：