... h3.Language Basics Code Samples
Learn basic language constructs to start writing applications with the Java programming language.
* [#Arrays]
* [#Control Flow]
* [#Date and Time]
* [#Operators]
* [#Packages]
* [#Variables]
h5.Arrays
* [ArrayDemo.java|http://java.sun.com/docs/books/tutorial/java/data/examples/ArrayDemo.java] creates an array, puts some values in it, and displays the values. For supporting information see [The Java Tutorial: Object Basics and Simple Data Objects|http://java.sun.com/docs/books/tutorial/java/data/].
* [ArrayCopyDemo.java|http://java.sun.com/docs/books/tutorial/java/data/examples/ArrayCopyDemo.java] uses the arrayCopy method to copy some elements from one array to another. For supporting information see [The Java Tutorial: Object Basics and Simple Data Objects|http://java.sun.com/docs/books/tutorial/java/data/].
* [ArrayofArraysDemo.java|http://java.sun.com/docs/books/tutorial/java/data/examples/ArrayOfArraysDemo.java] creates an array and uses an initializer to populate it with four subarrays. For supporting information see [The Java Tutorial: Object Basics and Simple Data Objects|http://java.sun.com/docs/books/tutorial/java/data/].
* [ArrayofArraysDemo2.java|http://java.sun.com/docs/books/tutorial/java/data/examples/ArrayOfArraysDemo2.java] creates an array of arrays by explicitly writing code to create each subarray. For supporting information see [The Java Tutorial: Object Basics and Simple Data Objects|http://java.sun.com/docs/books/tutorial/java/data/].
* [ArrayofStringsDemo.java|http://java.sun.com/docs/books/tutorial/java/data/examples/ArrayOfStringsDemo.java] uses an array initializer to create an array containing three string objects and puts the strings in all lowercase letters. For supporting information see [The Java Tutorial: Object Basics and Simple Data Objects|http://java.sun.com/docs/books/tutorial/java/data/].
h5.Control Flow
* [BreakDemo.java|http://java.sun.com/docs/books/tutorial/java/nutsandbolts/examples/BreakDemo.java] contains a for loop that searches for a particular value within an array. For supporting information see [The Java Tutorial: Nuts and Bolts|http://java.sun.com/docs/books/tutorial/java/nutsandbolts/].
*[BreakWithLabelDemo.java|http://java.sun.com/docs/books/tutorial/java/nutsandbolts/examples/BreakWithLabelDemo.java] searches for a value in a two-dimensional array. For supporting information see [The Java Tutorial: Nuts and Bolts|http://java.sun.com/docs/books/tutorial/java/nutsandbolts/].
* [ContinueDemo.java|http://java.sun.com/docs/books/tutorial/java/nutsandbolts/examples/ContinueDemo.java] steps through a string buffer and checks each letter. For supporting information see [The Java Tutorial: Nuts and Bolts|http://java.sun.com/docs/books/tutorial/java/nutsandbolts/].
* [ContinueWithLabelDemo.java|http://java.sun.com/docs/books/tutorial/java/nutsandbolts/examples/ContinueWithLabelDemo.java] uses nested loops to search for a substring within another string. For supporting information see [The Java Tutorial: Nuts and Bolts|http://java.sun.com/docs/books/tutorial/java/nutsandbolts/].
* [DoWhileDemo.java|http://java.sun.com/docs/books/tutorial/java/nutsandbolts/examples/DoWhileDemo.java] shows how to use a do-while statement to continually execute a block of code while a condition remains true. For supporting information see [The Java Tutorial: Nuts and Bolts|http://java.sun.com/docs/books/tutorial/java/nutsandbolts/].
* [ForDemo.java|http://java.sun.com/docs/books/tutorial/java/nutsandbolts/examples/ForDemo.java] uses a for statement to iterate over the elements of an array and print them. For supporting information see [The Java Tutorial: Nuts and Bolts|http://java.sun.com/docs/books/tutorial/java/nutsandbolts/].
* [IfElseDemo.java|http://java.sun.com/docs/books/tutorial/java/nutsandbolts/examples/IfElseDemo.java] uses an if-else statement to assign a grade based on the value of a test score. For supporting information see [The Java Tutorial: Nuts and Bolts|http://java.sun.com/docs/books/tutorial/java/nutsandbolts/].
* [SwitchDemo.java|http://java.sun.com/docs/books/tutorial/java/nutsandbolts/examples/SwitchDemo.java] uses the switch statement to conditionally perform statements based on an integer expression. For supporting information see [The Java Tutorial: Nuts and Bolts|http://java.sun.com/docs/books/tutorial/java/nutsandbolts/].
* [SwitchDemo2.java|http://java.sun.com/docs/books/tutorial/java/nutsandbolts/examples/SwitchDemo2.java] illustrates how it can be useful to make a case statement terminate the flow of control. For supporting information see [The Java Tutorial: Nuts and Bolts|http://java.sun.com/docs/books/tutorial/java/nutsandbolts/].
* [WhileDemo.java|http://java.sun.com/docs/books/tutorial/java/nutsandbolts/examples/WhileDemo.java] shows how to use a while statement to continually execute a block of code while a condition remains true. For supporting information see [The Java Tutorial: Nuts and Bolts|http://java.sun.com/docs/books/tutorial/java/nutsandbolts/].
h5.Date & Time
* [June.java|http://java.sun.com/new2java/supplements/2002/June.java] demonstrates the limits of scope by finding out which month of the year is June. For supporting information see [New to Java Programming Supplement, Feb 2002|http://java.sun.com/new2java/supplements/2002/feb02.html].
* [TimeTest.java|http://java.sun.com/new2java/supplements/2001/TimeTest.java] shows you how to create a time stamp object that returns the current time. For supporting information see [New to Java Programming Supplement, November 2001|http://java.sun.com/new2java/supplements/2001/nov01.html].
h5.Operators
* [ArithmeticDemo.java|http://java.sun.com/docs/books/tutorial/java/nutsandbolts/examples/ArithmeticDemo.java] shows you how to perform mathematical operations with numbers. For supporting information see [The Java Tutorial: Nuts and Bolts|http://java.sun.com/docs/books/tutorial/java/nutsandbolts/].
h5.Packages
* [TestFileClass.java|http://java.sun.com/new2java/supplements/2002/TestFileClass.java] [New to Java Programming Supplement, Feb 2002|http://java.sun.com/new2java/supplements/2002/feb02.html].
h5.Variables |