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

Core Java Interview Questions

Questions Answers Views Company eMail

Write a program to reverse array in place?

1087

Why wait and notify methods are declared in object class?

1056

Explain the difference between serializable and externalizable in java?

1089

What is difference between wait and notify in java?

1159

What is difference between path and classpath in java?

1046

Explain the difference between transient and volatile in java?

1017

Explain the difference between string, stringbuffer and stringbuilder in java?

1018

Explain the difference between static and dynamic binding in java?

1080

Explain the difference between arraylist and linkedlist in java?

997

Write java program to reverse string without using api?

1080

Write a java program to print fibonacci series?

973

Difference between association, composition and aggregation?

1011

Explain the difference between comparator and comparable in java?

969

Explain the difference between runnable and callable interface in java?

1067

What is difference between synchronize and concurrent collection in java?

1090

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Un-Answered Questions { Core Java }

What happens when you invoke a thread’s interrupt method while it is sleeping or waiting?

999

What is the java project architecture?

2258

How to create a thread in java?

1152

What do you mean by garbage collection used in java?

1085

What are inbuilt functions in java?

1107

Can a class be protected in java?

994

What is hotjava?

1017

What happens if we override only equals?

990

How to create a base64 decoder in java8?

1071

whar are the draw backs of programming lang step by step in Clang and next in C++ and next and in Java nad in .Net

2130

How do you sort a list in java?

1048

Is passing by reference faster?

1010

What is private static in java?

1058

Why string is immutable with example?

992

What are void methods?

1038

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