Java Playing with The Bits & Hide the Number Programming Project

Part 1  Playing with the bits.

Get the source from A3.java

Get a sample image sample.png

• What you need to do: Look for the instructions in the source code.
• Here is how the output image should look like: out.png (attached in the zip file)
• Part 2 (. Hide the number.

Write a program that asks the user for a number (an integer). Then your program loads a png image and hides the number in the image using the LSB method.
Write another program that loads an image in which a number has been hidden. Then retrieve and display the hidden number.

The following program iterates through each bit of a number, from the most significant bit to least significant bit.

import java.util.Scanner;

public class A {
   public static void main(String args[]) {
       Scanner in = new Scanner(System.in);
       System.out.print(“Please give me a number: “);
       int N = in.nextInt();
       
       System.out.println(“nAn integer is ” + Integer.SIZE + ” bits long.n”);
       
       for(int i=Integer.SIZE-1; i >= 0; i– ) {
           int b = (N >> i) & 0x01;
           System.out.print(b + ” “);
       }
       System.out.println();
   }
}

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