Use Git or checkout with SVN using the web URL. Work fast with our official CLI. Open with GitHub Desktop Download ZIP. Java is an object-oriented, cross platform, multi-purpose programming language produced by Sun Microsystems, later acquired by Oracle Corporation. One thing that distinguished Java from some other languages is its ability to run the same compiled code across multiple operating systems.

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Free Java Programs Examples

Various Java programs to illustrate various concepts

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• A Hello World! Java program.

• Calling Methods. A sample of how to call methods in the same class.

• For loop. A simple example of using for loops to calculate factorial. Uses the built in int data type so only good to 13!

• Value Parameters: An example that shows the behavior of value parameters. In Java all parameters are passed by value.

  Physics is the study of matter, motion, energy, and force. Here, you can browse videos, articles, and exercises by topic. We keep the library up-to-date, so you may. Physics is the basic physical science. Until rather recent times physics and natural philosophy were used interchangeably for the science whose aim is the discovery. Physics definition is - a science that deals with matter and energy and their interactions. Physics.

• String Example. A few brief examples of String manipulations.

• BinaryConverter. A program with examples of various Java syntax that converts a base 10 int to base 2 String.

• PrimeEx A program with various approaches to determine if an int is prime or not. Used to demonstrate Java syntax. You need the Stopwatch class, a non standard Java class, as well.

• 2D array Example. A simplified version of filtering a picture represented by ints.

• 2D array example. Very simple version of the Conway's Game of Life.

• Program to create ASCII frequency table from file and url. Demonstration of try / catch blocks. The CIA 2008 Factbook may be downloaded from Project Gutenberg.

• IntListVer1 First version of the IntList class developed in class. Developing class to illustrate various class design and implementation issues in Java.

• IntListVer2 Added default add method, equals method, and toString methods. Includes versions of toString using String concatenation and StringBuffer to illustarte performance differences.

• IntListVer3. Added insert and remove methods.

• SortedIntList. Inherits from InListVer3 to create a SortedIntList. Class is 'broken' because random insertions still allowed.

• GenericList. Altered the list to store anything, not just ints.

• Die class. A class that models a playing die.

• DemoClass: This illustrates some of the more confusing concepts in class syntax and mechanics such as constructors, static vs. instance methods, and method overloading.

• Stopwatch class. A class for measuring how long it takes for a program to run.

• Create a Set. A method that using polymorphism to create a set from an array.

• Recursion examples. Includes examples on finding space taken up by files in a directory including all files in all subdirectories, recursive factorial, recursive power, recursive Fibonacci numbers, and a simple knapsack problem.

• Eight Queens example. Code to find a a solution to an N queens problem. Note the queensAreSafe method has not been completed.

• Airlines example. Determine if airlines can be moved from airline to another based on network of airline partners. Here is a sample input file.

• Minesweeper. Another example of recursion from the game minesweeper.

• GenericListVersion2. Changed the GenericList class so that it implements the Iterable interface in order to demonstrate how to implement an iterator using an inner class.

• GenericListVersion3. Changed GenericList so it is generic based on Java generics syntax instead of relying on Object.

• ListNode. A singly linked node class used to build linked lists

• IList. A simple list interface

• LinkedList. Similar to the LinkedList developed in class. Does not contain all the methods you would expect of a LinkedList. Also implements the iterator remove method in O(N) time. An O(1) time remove method is possible.

• UnsortedHashSet - An unsorted set that uses a hashtable with closed address hashing to store values. Currently only the add method is implemented.

• UnsortedSetTest - A method to compare Java's TreeSet and HashSet to the BianrySearchTree, UnsortedSet, and UnsortedHashSet classes developed in class. Note you need a lot of other files for this to work.

• SimpleWordCount - Program demonstrating use of a map to count the frequency of words in a file.

• WordCount - Program that compares counting words in files using an ArrayList and a Map.

Example Of Java Program