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list The Java Class Library?
Java holds an extensive library of pre-written classes you can use in your programs. These classes are separated into groups known as packages. The Java 1.1 packages• java.applet • java.awt • java.awt.datatransfer • java.awt.event • java.awt.image • java.awt.peer • java.beans • java.io • java.lang • java.lang.reflect • java.math • java.net • java.rmi • java.rmi.dgc • java.rmi.registry • java.rmi.server • java.security • java.security.acl • java.security.interfaces • java.sql • java.text • java.util • java.util.zip
Each package describes a number of classes, interfaces, exceptions, and errors.
Packages can be split into sub-packages. for instance, the java.lang package has a sub-package known as java.lang.reflect. These are really fully different packages. A class in a sub-package has no more access to a class within the parent package (or vice versa) than it would to a class in a fully different package.
Write a program to explain do while loop in Java ? // This is the Hello program in Java class Hello { public static void main (String args[]) { int i = -1; do { if (
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create and initialize the two dimensional array called table Numbers of type integer. use nested loops that will add 12 to each element in an array. use nested loops that will get
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Question: (a) Describe what is meant by a ‘constructor' in Java. Use a simple example to illustrate your answer. (b) Differentiate between a class method and an instance me
The Local Systems IP Address and Port Number and the Remote System's IPAddress and Port Number.
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