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Core Java Interview Questions
Questions Answers Views Company eMail

What is array pointers ?

Amdocs,

1032

What is better- service oriented or batch oriented solutions?

Amdocs,

2220

What is difference between an object and a class?

Amdocs,

1126

What is the purpose of checked and unchecked exceptions in JAVA?

Amdocs,

1011

What is the significance of continue jump statement? Explain with an example.

Amdocs,

1289

What is widening and narrowing in java? Discuss with an example.

Amdocs,

1040

Write the algorithm to check the number non-leaf nodes in a tree.

Amdocs,

1076

Differentiate between class and structure.

Amdocs, Motorola,

1132

Explain implementation and how is it different from conversion?

Aricent,

1084

Explain what pure virtual function is?

Aricent,

1023

How will you calculate the depth of a binary tree if the tree contains 15 nodes?

Aricent,

1081

Is it necessary for the port addresses to be unique? Explain with reason.

Aricent,

1018

Tell me how many ways are there to initialise an integer with a constant.

Aricent,

1110

Can you make a constructor final in Java?

SwanSoft Technologies,

1133

Differences between C and Java?

TCS,

1201

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Un-Answered Questions { Core Java }

What is meant by binding in rmi?

1011

What is return code?

1006

Write an algorithm program in java for the following question.. 1) S is a set of integers.X is an integer obtained by sum of two digits in S. Write logic for whether or not the X is from the S. The time of algorithm should not exceed o(n logn).

2146

What is reflexive association?

1803

What is variable in java?

987

Is null keyword in java?

944

What is the java idl system?

1043

What should I import for arraylist in java?

1035

What is meant by stack and queue?

1070

Can we have any code between try and finally blocks?

1021

What is flush buffer?

1050

Which are different kinds of source code?

1111

What is java english?

1003

Can a class extend 2 classes in java?

1036

Can finally block be used without a catch?

1009

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