This java source code will show how to convert decimal number to octal number. To convert decimal to octal used toOctalString(Integer) method.

DecimaltoOctal.java

//copyrighted by topsourcecode.com
import javax.swing.JOptionPane;

public class DecimaltoOctal
{
 public static void main(String []a)
 {
    //Method 1
    String sNumber=JOptionPane.showInputDialog("Insert a Integer value");
    int number=0;
    try
    {
      number=Integer.parseInt(sNumber);
    }
    catch(Exception e)
    {
       JOptionPane one = new JOptionPane();
       JOptionPane.showMessageDialog(one,"Input value error(Expected a decimal value)");
       System.exit(-1);
    }
    
    String octal = Integer.toOctalString(number);
    JOptionPane one = new JOptionPane();
    JOptionPane.showMessageDialog(one,"Octal Value of Decimal "+number+" =\n" + octal);
 }
}

Result

Share this post