Examples of merging bit-masks with bitwise-or

com.codeshane.examples.java.BitwiseOr

package com.codeshane.examples.java;
 
/* Examples of merging bit-masks with bitwise-or.
 * Also available via http://snipt.org/vgxg5
 *
 * @author codeshane.com
 * @version 1
 * 
 */
 
public class BitwiseOr {
	public static void main(String[] args) {
		int bit_0=0x1;
		int bit_1=0x2;
		int binary_3=0x3;
 
		System.out.println("Provided codeshane.com; CC-0 licensed.)");
		System.out.println("== Examples: Using BITWISE-OR '|' to combine bit-masks. ==");
		System.out.println();
		System.out.println("   hex        binary    Bit-mask");
		System.out.println("_base-16_    _base-2_   _result_");
		System.out.println();
 
		int bitwise_or = bit_0 | bit_1;
		System.out.println("0x1             ".concat(Integer.toBinaryString(bit_0)));
		System.out.println("0x2            ".concat(Integer.toBinaryString(bit_1)));
		System.out.println("0x1 | 0x2  =   ".concat(Integer.toBinaryString(bitwise_or)).concat("   ->  Correct (bitwise-or)"));
		System.out.println();
 
		int bitwise_or_too = bit_1 | binary_3;
		System.out.println("0x2            ".concat(Integer.toBinaryString(bit_1)));
		System.out.println("0x3            ".concat(Integer.toBinaryString(binary_3)));
		System.out.println("0x2 | 0x3  =   ".concat(Integer.toBinaryString(bitwise_or_too)).concat("   ->  Correct (bitwise-or)"));		
		System.out.println();
 
		System.out.println("== Examples: Breaking bit-masks the easy way, using addition '+' ==");
		System.out.println();
		int add_lucky = bit_0 + bit_1;
		System.out.println("0x1             ".concat(Integer.toBinaryString(bit_0)));
		System.out.println("0x2            ".concat(Integer.toBinaryString(bit_1)));
		System.out.println("0x1 + 0x2  =   ".concat(Integer.toBinaryString(add_lucky)).concat("   ->  Accidentally correct (add)"));
		System.out.println();
 
		int add_fail = bit_1 + binary_3;
		System.out.println("0x2            ".concat(Integer.toBinaryString(bit_1)));
		System.out.println("0x3            ".concat(Integer.toBinaryString(binary_3)));
		System.out.println("0x2 + 0x3  =  ".concat(Integer.toBinaryString(add_fail)).concat("   ->  Incorrect (add)"));
	}
}