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Java Libraries

1. java.lang: it is used to support classes containing String, Character, Math, Integer, Thread, etc. 2. java.io: to support stream reader classes to deal with input and output statement. 3. java.applet: to support classes to generate applet - specific environment. 4. java.net: to support classes for network related operations and dealing with URL(Uniform Resource Locator) 5. java.awt: to support abstract window tool kit and also to manage GUI(Graphical User Interface) 6. java.txt: for supporting text elements such as dates, times and currency etc. 7. java.math: to support mathematical function such as square roots( integer and decimal both) In the first phase we will be continuing with basic program in BlueJ and some theories which will help you to understand
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What is JAVA?

Java is a High Level Programming language used for developing applets, android applications, used in ATM machines, etc.  Java gives us various types of Libraries which makes easier to use it. There are many version of java are availiable like jdk 7, jdk 8, etc. Simple Programming import java.util.*; class java { public static void main() { int a,b,c; a=20; b=30; c=a+b; System.out.println(c); } } Output 50
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