Octal to decimal conversion using Java
Octal to decimal conversion using java
In this article we will discuss octal to decimal conversion using java. For this purpose we need to ask an octal number from user and convert that octal number to its decimal equivalent form and then print the converted number on to the screen.
Algorithm
- Declare two variables, one for storing decimal value and second for storing value of the power.
- Use the while loop till octal number entered by user is greater than 0.
- Use a statement to get the last digit of the octal number.
- Use the statement for adding each digit by multiplying by the power of 8 and power starts with 0 till p-1 (where p is the number of digits in the octal number) by using power function.
- Use the statement for removing last digit of the octal number and taking only remaining number and increase the value of the power by 1.
- Repeat the steps 3 to 6 till the value of the loop does not gets false.
Java Code :
Run
//Java program to convert octal number to decimal number
import java.util.Scanner;
public class Main
{
public static void main(String args[])
{
//scanner class object creation
Scanner sc = new Scanner(System.in);
//input from user
System.out.print("Enter a octal number : ");
int octal = sc.nextInt();
//Declare variable to store decimal number
int decimal = 0;
//Declare variable to use in power
int n = 0;
//writing logic for the conversion
while(octal > 0)
{
int temp = octal % 10;
decimal += temp * Math.pow(8, n);
octal = octal/10;
n++;
}
//printing result
System.out.println("Decimal number : "+decimal);
//closing scanner class(not compulsory, but good practice)
sc.close();
}
}
Output :
Binary Number is 512 Decimal Number is 330
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