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What is difference between local variable and global variable?
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How to decrease number of hashings in has
Write down program for following scenario. Use java coding standard. You have array list with some words in it..we will call it as dictionary….and you have a arbitrary string containing some chars in it. You have to go through each word of dictionary and find out if that word can be constructed with the help of chars from arbitrary string given. If you find the word print it else print none.
Why to use nested classes in java? (Or) what is the purpose of nested class in java?
Can you start a thread twice in Java?
What is the maximum size of array in java?
What is palindrome in java?
How u dubugg ur project?
Why are the destructors for base class and derived class called in reverse order when the program exits
What is nullpointerexception in java?
my method "abc" return array of interface "xyz" and "pqr" is abstract class implements abc and class "jkl" extends pqr My problem 1) when i call abc it retrun array xyz how can i do this hint xyz refer_xyz = new jkl(); but i can't create array. 2)I want to access method of jkl using reference of xyz??
Define max and min heap, also the search time of heap.
what is a green thread? : Java thread
Core Java 
