CIS 67: Some Simple Java Programs

• The psJava console package from Koffman-Woltz and a simple program to test it.

• The Hello program:
  • using System.out,
  • using System.in and System.out,
  • using javax.swing.JOptionPane output,
  • using javax.swing.JOptionPane input output,
  • using the Koffman-Woltz psJava package
• The euclidean algorithm to compute the gcd of two integers
• Printing n Fibonacci numbers
• Overflow and roundoff errors.
• Printing the integer values of the printable ASCII characters
• An example that shows a usage of a command line parameter and of the substring method for Strings. It prints proper heads and tails of a string.
• A simple example of use of the Tokenizer class.
• Generating a random permutation.

A large supply of examples of Java code, some for advanced applications, is at http://developer.java.sun.com/developer/codesamples/
Many more examples are in The Java Developers Almanac 1.4