what is mutability?which one is mutable String or StringBuffer?and why?give examples of each which shows the mutability of each String or StringBuffer
4 25313How to add two numbers with out using Arithmetic , union operators in java....? But we can use bitwise operators... but how...?
4 11281Can we access private data outside of the class directly in java programming language? Why There is no runtime checking in java, which leads to access the private data directly outside of a class?
5 9305What is the need to implement Serializable interface (with no methods) for objects which are to be serialized ? We can write our own functionality which writes objects to streams then why we need to implement and tell JVM that which objects can be serialized.
6 13892what is the purpose of method overriding in java where v r completely re-defining a inherited method instead y can't v create a new method and define.If the question is very silly plz excuse me and do reply.Thank U!
7 26456If a multi threaded Java program has started numerous number of threads, at any point in time how to know which thread is currently executing/running ?
7 13506what is the use of pojo (plain old java objects)? how it is interact with crystal reports? pls urgent
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What is the difference between Java Program Constructor and Java Program Method, What is the purpose of Java Program constructor Please Explain it Breafily?
What is data movement?
Does garbage collection occur in permanent generation space in jvm?
What is arraylist e in java?
What is a flag and how does it work?
What are the differences between c++ and java?
Define packages in java?
Explain about data types?
What are the drawbacks for singleton class?
Can we have any other return type than void for main method?
Which class is the superclass of all classes?
What is the size of integer?
How transient variable is different from volatile variable?
Can a class have 2 constructors?
What is the default size of arraylist in java?
