Converting Binary to Hexadecimal Using a String Method in Java

How can you convert from binary to hexadecimal using a string method in Java?

What is the process of converting binary to hexadecimal in Java?

Answer:

To convert from binary to hexadecimal in Java, you can use the `Integer` class and its `toHexString()` method. First, convert the binary string to an integer using the `parseInt()` method with a radix of 2. Then, use the `toHexString()` method to convert the integer to a hexadecimal string.

To convert from binary to hexadecimal in Java, you can follow these steps:

1. Convert Binary String to Integer

First, you need to convert the binary string to an integer using the `parseInt()` method of the `Integer` class. The `parseInt()` method takes two arguments: the binary string and the radix, which is 2 for binary.

2. Convert Integer to Hexadecimal String

Once you have the integer value, you can use the `toHexString()` method of the `Integer` class to convert it to a hexadecimal string. The `toHexString()` method takes the integer value as input and returns a string representation of the hexadecimal value.

3. Utilize Hexadecimal String

Finally, you can print or use the hexadecimal string as needed in your Java program.

Here is an example code snippet:

String binary = "101010";

int decimal = Integer.parseInt(binary, 2);

String hexadecimal = Integer.toHexString(decimal);

System.out.println(hexadecimal);

This code will convert the binary string "101010" to its hexadecimal representation, which is "2A". The `parseInt()` method converts the binary string to an integer, and the `toHexString()` method converts the integer to a hexadecimal string.