Binary to Octal Program in Java

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Convert Binary to Octal Program in Java

There are two way to convert decimal number into octal number, which is given below;

  • Using predefined method Integer.toOctalString(int num)
  • Writing our own logic for conversion

Convert Binary to Octal in Java

import java.util.Scanner;
 
public class BinaryTOoctal
{
Scanner scan;
int num;
	
void getVal() 
{	
System.out.println("Binary to Octal");
scan = new Scanner(System.in);
	
System.out.println("\nEnter the number :");
num = Integer.parseInt(scan.nextLine(), 2);
}	
void convert() 
{
String octal = Integer.toOctalString(num);
System.out.println("Octal Value is : " + octal);
}
}
 
class MainClass 
{
	
public static void main(String args[]) 
{
Binary_Octal obj = new Binary_Octal();
obj.getVal();
obj.convert();
}
}

Output

Binary to Octal

Enter the number :
1010
Octal Value is : 12

Convert Binary to Octal in Java

import java.util.Scanner;

public class BinaryTOoctal
{
 public static void main(String args[])
 {
 int binnum, rem, quot, i=1, j;
 int octnum[] = new int[100];
 Scanner scan = new Scanner(System.in);
		
 System.out.print("Enter Binary Number : ");
 binnum = scan.nextInt();
		
 quot = binnum;
		
 while(quot != 0)
 {
 octnum[i++] = quot%8;
 quot = quot/8;
 }
		
 System.out.print("Equivalent Octal Value of " +binnum+ " is :\n");
 for(j=i-1; j>0; j--)
 {
 System.out.print(octnum[j]);
 }
}
}

Output

Enter Binary Number : 11
Equivalent Octal Value of 11 is :13

Syntax to compile and run java program

Syntax

for compile -> c:/>javac BinaryTOoctal.java
for run -> c:/>java BinaryTOoctal

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