Convert A String (like testing123) To Binary In Java [closed]

by

The usual way is to use String#getBytes() to get the underlying bytes and then present those bytes in some other form (hex, binary whatever).

Note that getBytes() uses the default charset, so if you want the string converted to some specific character encoding, you should use getBytes(String encoding) instead, but many times (esp when dealing with ASCII) getBytes() is enough (and has the advantage of not throwing a checked exception).

For specific conversion to binary, here is an example:

  String s = "foo";
  byte[] bytes = s.getBytes();
  StringBuilder binary = new StringBuilder();
  for (byte b : bytes)
  {
     int val = b;
     for (int i = 0; i < 8; i++)
     {
        binary.append((val & 128) == 0 ? 0 : 1);
        val <<= 1;
     }
     binary.append(' ');
  }
  System.out.println("'" + s + "' to binary: " + binary);

Running this example will yield:

'foo' to binary: 01100110 01101111 01101111

More Related Contents:

  1. Java: Syntax and meaning behind “[B@1ef9157”? Binary/Address?
  2. Convert hexadecimal string (hex) to a binary string
  3. Convert a String of Hex into ASCII in Java
  4. How to determine if a number is binary and has an even amount of zeros with only one regex?
  5. Printing Binary values using nested loops [closed]
  6. how to get the first two bytes from a string in java?
  7. Reading a plain text file in Java
  8. Convert a string representation of a hex dump to a byte array using Java?
  9. Converting A String To Hexadecimal In Java
  10. How are integers internally represented at a bit level in Java?
  11. How to convert a color integer to a hex String in Android?
  12. How to convert hex string to Java string?
  13. Convert hex string to int
  14. Converting an int to a binary string representation in Java?
  15. Converting Decimal to Binary Java
  16. How to convert a byte to its binary string representation
  17. “unmappable character for encoding” warning in Java
  18. In Java, can I define an integer constant in binary format?
  19. Convert binary string to byte array
  20. 2’s complement hex number to decimal in java
  21. How to convert hex strings to byte values in Java
  22. How to convert byte array to hex format in Java
  23. Are there binary literals in Java?
  24. How to convert a Binary String to a base 10 integer in Java
  25. Convert Double to Binary representation?
  26. Adding binary numbers
  27. Java Convert integer to hex integer
  28. Why is Java able to store 0xff000000 as an int?
  29. Determining binary/text file type in Java?
  30. How to convert hex string to float in Java?

Leave a Comment