Bitwise Operations on "byte" Values - Example Program

This section provides a tutorial example on how 4 types of bitwise operations, 'And', 'Or', 'Exclusive Or', and 'Complement' works on 'int' values.

To verify those bitwise operation rules given in the previous section, I wrote the following test program, BitwiseOperations.java:

/* BitwiseOperations.java
 - Copyright (c) 2012, HerongYang.com, All Rights Reserved.
 */
public class BitwiseOperations {
   public static void main(String[] arg) {
      int a = 858993459;  // binary: 00110011001100110011001100110011
      int b = 1431655765; // binary: 01010101010101010101010101010101

      int o1 = a & b; // bitwise "And"
      int o2 = a | b; // bitwise "Or"
      int o3 = a ^ b; // bitwise "Exclusive Or"
      int o4 = ~a;    // bitwise "Complement"

      System.out.println(" a: "+getBitString(a) +" = "+a);
      System.out.println(" b: "+getBitString(b) +" = "+b);
      System.out.println("o1: "+getBitString(o1) +" = "+o1);
      System.out.println("o2: "+getBitString(o2) +" = "+o2);
      System.out.println("o3: "+getBitString(o3) +" = "+o3);
      System.out.println("o4: "+getBitString(o4) +" = "+o4);
   }
   private static String getBitString(int x) {
      StringBuffer buf = new StringBuffer();
      for (int i=1; i<=32; i++) buf.append(x>>>(32-i) & 0x00000001);
      return buf.toString();
   }
}

Here is the output of the test program:

 a: 00110011001100110011001100110011 = 858993459
 b: 01010101010101010101010101010101 = 1431655765
o1: 00010001000100010001000100010001 = 286331153
o2: 01110111011101110111011101110111 = 2004318071
o3: 01100110011001100110011001100110 = 1717986918
o4: 11001100110011001100110011001100 = -858993460

The resulting values in the program output do match those given in my examples in the previous section. The resulting value of the complement operation in the program output shows -858993460, which is the same as 3233857728 represented in a signed 32-bit integer format.

Last update: 2014.

Table of Contents

 About This Book

 Installing JDK 1.8 on Windows

 Execution Process, Entry Point, Input and Output

 Primitive Data Types and Literals

Bits, Bytes, Bitwise and Shift Operations

 What Are Bits and Bytes

 "byte" Data Type and Implicit Casting

 Operations on "byte" Data Type Values

 Bitwise Operations on "byte" Values

Bitwise Operations on "byte" Values - Example Program

 Shift Operations - Left, Right or Unsigned Right Shift

 Managing Bit Strings in Byte Arrays

 Reference Data Types and Variables

 StringBuffer - The String Buffer Class

 System Properties and Runtime Object Methods

 Generic Classes and Parameterized Types

 Generic Methods and Type Inference

 Lambda Expressions and Method References

 Execution Threads and Multi-Threading Java Programs

 ThreadGroup Class and "system" ThreadGroup Tree

 Synchronization Technique and Synchronized Code Blocks

 Deadlock Condition Example Programs

 Garbage Collection and the gc() Method

 Outdated Tutorials

 References

 PDF Printing Version