What is nullpointerexception?
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how to handle http request in struts
Which method returns the length of a string?
If you do not want your class to be inherited by any other class. What would you do?
What is the Set interface?
Can we convert stringbuffer to string?
What is static keyword?
What is the technique adopted to create an immutable class?
we have syntax like for(int var : arrayName) this syntax is to find whether a number is in the array or not.but i want to know how to find that number's location.
What is non static block in java
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write the hierarchy of component class?
What is string in java? String is a data type?
What are the traverses in Binary Tree?