Java – convert binary strings to binary

How to convert a string written as binary to binary (byte array)?

If I have a string:

String binary = "0000"

I want the binary data to be 0000

The following is what happens when I set the binary file as a byte array (48 in turn, i.e. ASCII)

Binary string: 0000 binary byte array: 48 binary byte array: 48 binary byte array: 48 binary byte array: 48

I'm not good at explaining, so I hope the above example is enough to tell you what I want

Edit: This is to set the data as a binary file

Solution

Use this:

System.out.println(Integer.toBinaryString(Integer.parseInt("000",2))); // gives 0
    System.out.println(Integer.toBinaryString(Integer.parseInt("010",2))); // gives 10
    System.out.println(Integer.toBinaryString(Integer.parseInt("100",2))); // gives 100