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Define the difference between StringBuffer and String class?
Explain garbage collection. Java uses garbage collection to free the memory. By cleaning those objects which is no longer reference by any of the program. Step involve in clean
RMI is a set of APIs that permits to build distributed applications. RMI uses interfaces to describe remote objects to turn local method invocations into remote method invocations.
Write a program on Filling Rectangles ? The drawRect() method draws an open rectangle, a box if you prefer. If you need to draw a filled rectangle, use the fillRect() method. O
What is ARPANET and who developed it? ARPANET stands for Advanced Research Projects. The initial reasons were to communicate along with and share computer resources between mainl
We need a very good iOS and/or Android developer preferred to be from Egypt. He will be responsible in developing iOS or/ and Android apps for a company. All details will be provid
GUI-Based Application Objectives: (1) Learning how to write a GUI-based application in Java. (2) Learning how to write an event driven application program in Java.
how to retrieve data from Excel file, and display that data in table on jsp page?
which algorithm are best?
Explain what is Object in JAVA language? They are foundation of object oriented language. They are data structure holds data fields and properties and methods
What is casting? There are two types of casting, casting among primitive numeric types and casting among object references. Casting among numeric types is used to convert large
A string buffer implements a variable sequence of characters. A string buffer is a String, and can be customized. At any point of time it contains some particular sequence of characters, but the length and content of the sequence can be changed through certain method calls. A String class represents character strings. All string literals in Java programs, as in "abc" are constant and implemented as instances of this class; their values cannot be changed after they are formed.
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