Question

A class DeciOct has been defined to convert a decimal number into its equivalent octal number . Some of the members of the class are given below:

Classname:DeciOct

Data Members / instance variables:
n:stores the decimal number
oct:stores the octal equivalent number
Member functions:
DeciOct():constructor to initialize the data members , n=0, oct=0.
void getnum(int nn):assign nn to n
void deci_oct():calculates the octal equivalent of ‘n’ and stores it in oct using the recursive technique
void show():displays the decimal number ‘n’, calls the function deci_oct() and displays its octal equivalent.
Specify the class DeciOct, giving details of the constructor( ), void getnum(int),void deci_oct() and void show().Also define a main() function to create an object and call the functions accordingly to enable the task

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Code

				
					import java.util.Scanner;
public class DeciOct
{
    int n,oct,i=0;
    Scanner sc=new Scanner(System.in);
    public DeciOct()
    {
        n=0;
        oct=0;
        i=0;
    }
    public void getnum(int nn)
    {
        n=nn;
    }
    public void deci_oct()
    {
        int c;
        
        if(n!=0)
        {
            c=n%8;
            n=n/8;
            oct=oct+c*(int)Math.pow(10,i);
            i=i+1;
            deci_oct();
            
            
        }
        
    }
    public void show()
    {
        System.out.println("Decimal number="+n);
        deci_oct();
        System.out.println("Octalequivalent="+oct);
    }
    public static void main()
    {	
        Scanner sc=new Scanner(System.in);
        System.out.println("Enter a decimal num:");
        int num=sc.nextInt();
        DeciOct ob1=new DeciOct();
        ob1.getnum(num);
        ob1.show();
    }
}