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ASCII Code in Java (Part 1)

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The ASCII Code: (Part 1)

  • ASCII stands for "American Standard Code for Information Interchange".
  • As you may remember (Grade 9), computers only work with HIGH(1) and LOW(0) electrical states, known as bits, with correspond to mathematical Base 2 numbers. That is, computers only understand binary language.
  • ASCII codes represent text (or other things) in computers. Assume that you are working with MS Word, or PPT or any other tool that uses text based inputs from user. You need to type a sentence that computer is not aware of. ASCII codes help to exchange this information between user and computer. When you type a character, it is converted into ASCII code first and then into Binary, which makes the computer understand what is to be typed. Hence every key on the keyboard has a specific ASCII code which is used to make the computer understand our language.
  • If you press 4 from keyboard, then keyboard send the value 100 (value equivalent to 4). If you press key "a" the value will be 97 which is equivalent to 01100001.

The ASCII Codes

  • As Decimal is Base 10 (our) number system, we only have to check the decimal value of the specific character to get its ASCII code.
  • The Octal-HEX-Binary values are just given for Reference.
Click HERE for the Java program to print the ASCII Codes of different characters.
Click HERE for the Methods of Character class.

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