In this Java program, you’ll learn how to Convert Binary Number to Decimal and vice-versa using the Java programming language.
How to Convert Binary Number to Decimal and vice-versa using JAVA?
Example 1: Using custom method
RUN CODE SNIPPETclass Main
{
public static void main(String[] args)
{
long num = 11110111;
int decimal = convertBinaryToDecimal(num);
System.out.println("Binary to Decimal");
System.out.println(num + " = " + decimal);
}
public static int convertBinaryToDecimal(long num)
{
int decimalNumber = 0, i = 0;
long remainder;
while (num != 0)
{
remainder = num % 10;
num /= 10;
decimalNumber += remainder * Math.pow(2, i);
++i;
}
return decimalNumber;
}
}OUTPUT:
Binary to Decimal 11110111 = 247
Example 2: Using ParesInt()
RUN CODE SNIPPETclass Main
{
public static void main(String[] args)
{
String binary = "01011111";
int decimal = Integer.parseInt(binary, 2);
System.out.println(binary + " in binary = " + decimal + " in decimal.");
}
}OUTPUT:
01011111 in binary = 95 in decimal.
