Textbooks:

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Textbooks

• Problem Solving with Java, 1999, Addison-Wesley,
  Koffman and Wolz (for coverage of Java language).
• Data Structures and Algorithms in Java, 1998,
  LaFore

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Main Java Features

• Class definitions are much simpler.
• Unlike C, Java is a totally object-oriented
  language
• Main function must be in a class.
• No reference arguments all call by value
• No pointers

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Main Java Features (contd)

• Java is internet friendly
• platform independent
• Java applets are executable on internet
• Java has applications too similar to C
  programs

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What makes Java platform independent?

• Compiler translates to byte code (machine
  independent) instead of machine language (machine
  dependent).
• Each platform (computer) has its own Java
  virtual machine which can interpret byte code
  and translate it to machine language.

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What makes Java platform independent (contd)?

• Byte code is like an intermediate language
  between source code (Java) and object code
  (machine language).
• The Java virtual machine is an interpreter which
  means that Java runs slower than a compiled
  language.

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Java syntax based on C

• Identifiers same as for C - Programmers use
  Hungarian notation
• myBankAccount instead of my_bank_account for
  identifiers
• MyClass for a class (class name begins with
  uppercase)
• Primitive Data Types int, float, double, boolean
  (not bool), char
• String class part of Java class library similar
  to C string class.

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Control structure syntax same as for C

• Loops (while, do-while, for)
• Decisions - if and switch
• functions (methods) - no var parameters

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