What is the use of StringTokenizer class?
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Name few java.lang classes introduced with java 8 ?
What is the use of java?
Can we change the value of static variable?
What will happen inside init() in servlet. my interviewer asked servlet lifecycle. i said "once servlet is loaded in to memory init() will be called which performs servlet initialization " . Again interview asked what values will be initialized . what is difference between init() and init(ServletConfig config).
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what is marker interface ? what is the necessity of it?
What do you mean by synchronized non access modifier?
What modifiers are allowed for methods in an interface?
Is an object null?
Can we overload final method in java?
Write a program to show whether a graph is a tree or not using adjacency matrix.
What is formatted output?
Is nan false?