JAVA EXAMPLE PROGRAMS

JAVA EXAMPLE PROGRAMS

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Program: Write a program to convert decimal number to binary format.


Description:

Write a program to convert decimal number to binary format using numeric operations. Below example shows how to convert decimal number to binary format using numeric operations.


Code:
package com.java2novice.algos;

public class DecimalToBinary {

	public void printBinaryFormat(int number){
		int binary[] = new int[25];
		int index = 0;
		while(number > 0){
			binary[index++] = number%2;
			number = number/2;
		}
		for(int i = index-1;i >= 0;i--){
			System.out.print(binary[i]);
		}
	}
	
	public static void main(String a[]){
		DecimalToBinary dtb = new DecimalToBinary();
		dtb.printBinaryFormat(25);
	}
}

Output:
11001
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Knowledge Centre
Difference between while and do-while
The while statement verifies the condition before entering into the loop to see whether the next loop iteration should occur or not. The do-while statement executes the first iteration without checking the condition, it verifies the condition after finishing each iteration. The do-while statement will always execute the body of a loop at least once.

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Reference: Java™ Platform Standard Ed. 6 - API Specification | Java is registered trademark of Oracle.
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