Java Program to Convert Octal to Binary

This is a Java Program to Convert Octal to Binary.

We make a class with two methods one for input and other for conversion and access this by object of this class. We first take the input as Octal from user. We define a method as convert() to convert the user’s input to Binary.

Here is the source code of the Java Program to Convert Octal to Binary. The Java program is successfully compiled and run on a Windows system. The program output is also shown below.

  1. import java.util.Scanner;
  2. class Octal_Binary 
  3. {
  4. 	Scanner scan;
  5. 	int num;
  6. 	void getVal() 
  7. 	{
  8. 		System.out.println("Octal to Binary");
  9. 		scan = new Scanner(System.in);
  10.  
  11. 		System.out.println("\nEnter the number :");
  12. 		num = Integer.parseInt(scan.nextLine(), 8);
  13. 	}
  14.  
  15. 	void convert() 
  16. 	{
  17. 		String binary = Integer.toBinaryString(num);
  18. 		System.out.println("Binary Value is : " + binary);
  19. 	}
  20. }
  21. class MainClass 
  22. {
  23. 	public static void main(String args[]) 
  24. 	{
  25. 		Octal_Binary obj = new Octal_Binary();
  26. 		obj.getVal();
  27. 		obj.convert();
  28. 	}
  29. }

Output:

$ javac MainClass.java
$ java MainClass
 
Octal to Binary
 
Enter the number :
10
Binary Value is : 1000

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