How to use the % sign in Java - printf

[BUnzaga 267]

Hello, I am trying to use this statement in Java...

System.out.printf("%d % %d = %d", int1, int2, int1%int2);
//assuming int1, int2 are inputed by the user.

I am new to Java, just started summer semester, and I couldn't find anything related to this issue on google, or in my text book, so I thought I would come here. Obviously the problem is the '%' character in the printf string. I have no idea how to write this properly. I tried '"%d "+"%"+" %d = %d"' I also thought maybe it was an 'escape character' so I tried \% but nothing works. Thanks for any help in this! BUnzaga [edited for id-10-t errors]

[BUnzaga 267]

Here is the full code if it will help at all...

//CS1400-001
//Brett Unzaga
//Homework1
//Version 1.4
/*Add, subtract, multiply, divide, find remainder
  of two numbers inputed by the user, then output
  the results to the user.*/

import java.util.Scanner;

public class Homework1
{
	public static void main(String args[])
	{
		Scanner userInput=new Scanner(System.in);
		int num1;
		int num2;
		System.out.print("Enter the first integer: ");
		num1=userInput.nextInt();
		System.out.print("Enter the second integer: ");
		num2=userInput.nextInt();
		doMath("%d + %d = %d\n",num1, num2, num1+num2);
		doMath("%d - %d = %d\n",num1, num2, num1-num2);
		doMath("%d * %d = %d\n",num1, num2, num1*num2);
		doMath("%d / %d = %d\n",num1, num2, num1/num2);
		doMath("%d mod %d = %d\n",num1, num2, num1%num2);
	}//close method 'main'

	public static void doMath(String problem, int number1, int number2, int result)
	{
		System.out.printf(problem, number1, number2, result);
	}//close method 'doMath'
}

I'd like to change the line:

doMath("%d mod %d = %d\n",num1, num2, num1%num2);

with something like:

doMath("%d % %d = %d\n",num1, num2, num1%num2);

To stay consistant with the rest of the code.

[Forba 130]

Use %% to to use % as a character in a string.

Eg.

System.out.printf("%d %% %d = %d", int1, int2, int1%int2);

[BUnzaga 267]

Thank you SOOOOO much! I have been trying to figure it out for over an hour now.

[M-E 109]

This doesnt really look java-ish, but its probably your first (or one of your first) porgrams and you didnt get OOP yet.

Can anyone tell me what %d does? I never ever used that before (didnt miss it)...

Or is it strictly printf?

Edit: already found out.

[Antheus 2409]

String s = "Result: " + num1 + " % " + num2 + " = " + (num1 % num2);
System.out.println(s);

String concatenation is straight-forward in Java, so there's no need for printf in your case.

For more complex tasks you have classes like DecimalFormat.

System.out.printf is somewhat recent addition to Java.

[M-E 109]

And besides that Antheus' example is a lot clearer for both you and other people reading the code at a later point. That's my opinion, though...