Core Java Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Core Java Interview Questions

Questions Answers Views Company eMail

What are the traverses in Binary Tree?

Adobe, Infosys,

2 7258

Name the types of mouse event listeners ?

2 6987

In what ways you can handle exception ?

3 7377

transaction attributes ?

2 4788

What are types of Java applications?

14 51995

types of applets?.

TCS,

7 45656

What are virtual functions?

2 9728

What are wrapped classes?

Samsung,

7 15662

What is the top class of AWT event hierarchy?

5 13821

What class is used to create Server side object?

TCS,

1 4193

Java run-time system generates What class of exceptions?

TCS,

2 4804

What classes of exceptions, caught by a catch clause?

1 5022

What are wrapper classes?

Noah Solutions,

11 24854

What classes of exceptions, thrown by a throw statement?

2 8471

garbate collector(GC)?

4 7691

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Un-Answered Questions { Core Java }

Why is string class considered immutable?

1062

What does it mean that strings are immutable?

1140

What are 5 boolean operators?

1187

Can I extend singleton class in java?

1115

What is a parameter used for?

969

Write a program to print fibonacci series up to count 10.

907

State the difference between creating string as new () and literal.

1123

what state does a thread enter when it terminates its processing? : Java thread

1057

What is reflexive association?

1810

What are new features introduced with java 8 ?

1001

What is json parser in java?

1065

What is keyword in oop?

961

What is a flag variable?

981

What is difference between variable declaration and definition?

981

What is the difference between compiler and jvm?

1060

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