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Core Java Interview Questions
Questions Answers Views Company eMail

What is more advisable to create a thread, by implementing a Runnable interface or by extending Thread class?

 5 11402

what's diff between struts 1.1 & 1.2

Wipro,

3 26048

why applet doesn't have main? isn't possible a program with out main?

TCS,

9 22233

what is an virtual function

TCS,

2 6081

what is the difference b/w design pattern and architecture

Covansys,

4 9279

What is emant by API? is it related to java only or it is common for all OOPS supporting language?

 3 5765

What is means by DLL file means ? What is the use of DLL file? What are the contents of DLL file?

 4 13056

without using arthematic operation ,how can you write the logic for adding/substraction/multiplication?

Tanla Solutions, Wipro,

7 13732

How to create an instance of a class if the class has private constructor?

 3 9612

How to create an instance of a class without using "new" operator? Plz help me out properly.Thank u.

CSC,

10 28499

how u do unit testing?

iFlex,

2 6187

How u dubugg ur project?

iFlex,

1 6442

who was the founder of java

CTS, HCL, ProKarma,

32 56687

what is mean by method signature?

Satyam,

5 9735

what is mean by String and StringBuffer? What is mean by Methooverriding and Overloading?

Satyam,

2 5830

Post New Core Java Questions

Un-Answered Questions { Core Java }

What is the base class for error and exception?

1009

What is method reference in java?

1155

What is operator overloading. Is it is supported in java?

1042

What is java full form?

1041

What is runtime polymorphism or dynamic method dispatch?

1020

Can substring create new object?

1135

Can we access instance variables within static methods ?

1108

What is the use of coding?

974

What is difference between synchronize and concurrent collection in java?

1086

How do you sort words in java?

945

What is anagram in java?

940

What is mnemonic in assembly language?

1082

Explain java coding standards for interfaces?

1123

What is Classloader in Java?

1232

Explain about serializable interface in java?

1010

For More Un-Answered { Core Java } Questions Click Here