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What is the Comparable interface?
Comparable interface is used to sort arrays and collections of objects using collections.sort() and java.utils. Objects of the class implementing Comparable interface can be ordered. All classes implementing Comparable interface should implement the compareTo() method which has the return type as an integer. Signature of compareTo() method is as below:
int i = object1.compareTo(object2)
How do you decide when to use HashMap and when to use TreeMap? When we want to perform deletion, insertion and locate elements in a Map then HashMap is used. Whereas TreeMa
State in detail about Java Virtual Machine (JVM) Central part of java platform is java virtual machine Java bytecode executes by special software known as a "virtual machine
Im not in the line of computer science.But i would like to have some knowledge about the computer language "JAVA".I aldredy learns the computer languages "C,C++".So kindly help me
How can you justify that a DBMS is better to use than Flat-file database? A DBMS takes care of the storage, retrieval, and management of large data sets on a Database. It give
Q. Write short on the method over ridding method in java? Ans. Method over ridding and dynamic binding: We have seen that a method in a super class is inherited by its subclass
What is output of the following JavaScript code? Str="Virtual University of Pakistan"; document.write(str.substring(5,str.length)) ;
I want to upload an item object with it''s image is it possible that i pass a complete object of my Item along with it''s image from my Controller if yes then how may i Do it? an
short Java application that stores words in an Array or ArrayList.
Given the following XHTML page: Create an embedded JavaScript function named getUserInfo that prompts the user with the following two questions after the XHTML page has loa
Using Java, write the class Time which consists of the following: (a) three private integer data members (hours, minutes and seconds). (b) a constructor to initialise the dat
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