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

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Core Java Interview Questions

Questions Answers Views Company eMail

Discuss about garbage collector in Java.

Agilent, Integreon, ZS Associates,

1075

Does java support Operator Overloading?

1040

How can I debug the Java security exceptions and AccessControlExceptions?

1148

How many types of memory areas are allocated by JVM in java?

UGC Corporation,

1070

What are the methods to rectify ambiguities in the interfaces in JAVA?

1084

What do you understand by garbage collection in Java? Can it be forced to run?

981

What environment variables are required to be set on a machine in order to run Java programs?

1187

What if I write static public void instead of public static void in java?

Winsol Solutions,

1089

What is an exception? difference between Checked and Unchecked exception in Java

SkillGun Technologies,

1012

What is object cloning in Java?

SwanSoft Technologies,

1104

What is the difference between ArrayList and Vector? which one is better in Java

SkillGun Technologies,

1130

What is the difference between C++ and Java and your preferences?

1109

What is the difference between Java Program Constructor and Java Program Method, What is the purpose of Java Program constructor Please Explain it Breafily?

1041

What is the difference between static method and instance method in Java?

SwanSoft Technologies,

1202

What is the need of transient variables in Java ?

1068

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Un-Answered Questions { Core Java }

Why are getters and setters used?

1058

What do you mean by constant time complexity?

1234

Break statement can be used as labels in java?

999

What is the syntax and characteristics of a lambda expression?

1040

What are the different ways of creating thread?

1009

Is arraylist ordered?

1070

what is aggregation in java?

1008

What is method with example?

1108

Is java type safe?

958

What is the difference between an array and an array list?

1018

When can you say a graph to be a tree?

1083

What is the final keyword in java?

1422

What are the legal parameters?

1009

Why is stringbuffer thread safe?

1044

write a program that list all permutations of ABCDEF in which A appears before B?

2483

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