Java-Programs/Other-Java-Programs/BinaryToDecimal.java at master · iamarav/Java-Programs · GitHub

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import java.util.Scanner;

public class BinaryToDecimal {

static int temp = 0;

public static void main(String[] args) {

int binaryInput;

System.out.println("Program to convert Binary Code to Decimal.\n---");

Scanner sm = new Scanner(System.in);

System.out.print("Enter the binary code (Make sure it contains only 0's and 1's): ");

binaryInput = sm.nextInt();

if(checkBinary(binaryInput)) {

end();

}

else {

binaryConvert(binaryInput);

System.out.println(temp);

sm.close();

end();

}

private static int binaryConvert(int num) {

int n,x=0;

while (num>0) {

n = (int) java.lang.Math.pow(2, x);

temp = temp + (num%10) * n;

x=x+1;

num=num/10;

}

return temp;

}

private static boolean checkBinary(int n) {

int x;

boolean flag = false;

while(n>0) {

x=n%10;

if(flag ==true) {

System.out.println("Validation Error: The Entered String is not a Binary Number.");

break;

}

else {

if(x==1 || x==0) {

}

else {

flag = true;

}

n=n/10;

}

return flag;

}

private static void end() {

System.out.println("---\nThe Program has ended.");

System.exit(0);

}

Java-Programs/Other-Java-Programs/BinaryToDecimal.java at master · iamarav/Java-Programs · GitHub

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