How many bits are used to represent Unicode, ASCII, UTF-16, and UTF-8 characters?

Java Interview Questions and Answers (part 1)

(Continued from previous question...)

187. How many bits are used to represent Unicode, ASCII, UTF-16, and UTF-8 characters?

Unicode requires 16 bits and ASCII require 7 bits. Although the ASCII character set uses only 7 bits, it is usually represented as 8 bits. UTF-8 represents characters using 8, 16, and 18 bit patterns. UTF-16 uses 16-bit and larger bit patterns.

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Other Interview Questions

• What's Java?
• What does a well-written OO program look like?
• Can you have virtual functions in Java?
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• What is similarities/difference between an Abstract class and Interface?
• How to define an Abstract class?
• How to define an Interface?
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• How many methods in the Serializable interface?
• How many methods in the Externalizable interface?
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• How are Observer and Observable used?
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• What are synchronized methods and synchronized statements?
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• What is the difference between static and non-static variables?
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