What is java lang object?
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How strings are created in java?
What is the difference between interpreter and compiling ?
Explain the private protected method modifier?
What is valid keyword in java?
how to use finalize()Method to resources
Is void a data type in java?
what is polymorhism what is inheritance? what is Abstract n Interface? what if two interfaces have same method and a concrete class is implementing both the interfaces. Will there be a compilation error? What are mutable and immutable classes? How can u make a class mutable? when will u use dem ...explain with example? what is overriding and overloading? what is garbage collection? what is Thread? how do dey communicate? what are the different ways of implementing ? have u used any messaging technologies? what is synchronization? what are some additions in java 1.5? what are generics? whst is advanced for loop? what is finally block? can u have a try in finally? yes!! can u have a finally in finally? how do you write junits? when is a object eligible for garbage collection?explain? a = null and b has ref to a will b be eligible to be garbage collected? sql questions like diff joins? how do dey work? exception handling? what is marker interface? what is the need??
In Java, what are this() and super(), and where are you required to use them?
What are the restrictions that are applied to the java static methods?
What is map in java?
Can we have any other return type than void for main method?
What is canonical name in java?