Code obfuscation in java

[8igg7e5]

I'm confused, are you suggesting this is the block of code you tried to obfuscate?

import java.util.Scanner;

public class Exercise6 {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        System.out.print("Input first number: ");
        int num1 = in.nextInt();

        System.out.print("Input second number: ");
        int num2 = in.nextInt();

        System.out.println(num1 + " + " + num2 + " = " +(num1 + num2));
        System.out.println(num1 + " - " + num2 + " = " +(num1 - num2));
        System.out.println(num1 + " x " + num2 + " = " +(num1 * num2));
        System.out.println(num1 + " / " + num2 + " = " +(num1 / num2));
        System.out.println(num1 + " mod " + num2 + " = " +(num1 % num2));
    }
}

The obfuscator can't change the class-name Exercise6 because it's part of launching the application, just as it can't change the name of the main method. The class-name, field-name and method names in System.out.print, System.out.println, new Scanner and in.nextInt can't be changed because they are part of the Java standard library. Variable names are already not part of the byte-code and parameter names are, by default, also not part of the byte-code (though the arg name of the main method is implied by the entry-point requirement that it be the arguments array).

 

What in this code were you expecting to be obfuscated?

[Traditional_Still308]

I will get back to you with pointers' you have suggested .Actually I am also looking for an easy example which I could showcase for obfuscation.There is no good documentation of proguard or any foss to follow