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Singleton Pattern
Is it possible to have another instance in the case we are applying Singleton pattern? If yes, how?
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Can HashMap store null values?If yes, how many?
Can HashMap store null values?If yes, how many?What is singleton class? Give one example.Please describe the difference between 'int' and 'Integer',what is the purpose of 'Integer', where should we use 'Integer' vs 'int'?
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Struts Advantage
What is the advantage of using struts?
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Abstract Interface
What is mean by Abstract Interface?
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Conversion of WSDL to Java and Java to WSDL
How to convert WSDL to Java code and Java code to WSDL?
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Checked and Unchecked Exception
When should we use a checked exception and when should we use an unchecked exception?
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JSP jspinit() method
Will you be able to override jspinit() methods? Justify
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Thread.Suspend and Thread.resume
Why Thread.Suspend and Thread.resume methods are deprecated?
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Difference between Throw & Throws
1)What is the difference between Throw & Throws?2)Explain the use of transient variable with example?
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Method Binding
What is method binding?
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Sort an Integer Array
How to sort an integer array and remove duplicates without using java API
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Can a double value be cast to a byte
Yes, a double value can be cast to a byte.
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Java Program to Count Number of Files
50,000 HTML files are in a folder on a windows machine. Among them, content of some files(not the file names) contain the sentence "SocioMaC-Jus' Follow!". Write a Java program to count the number of such files.
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Implement ArrayList
How do you implement ArrayList without using Collections in Java?
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Dynamic Object Creation
Why do we dynamic creation of object in Java?
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Java Interview Questions
Ans