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Core Java Interview Questions
Questions Answers Views Company eMail

What is array pointers ?

Amdocs,

1023

What is better- service oriented or batch oriented solutions?

Amdocs,

2210

What is difference between an object and a class?

Amdocs,

1119

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

Amdocs,

1007

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

Amdocs,

1285

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

Amdocs,

1037

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

Amdocs,

1065

Differentiate between class and structure.

Amdocs, Motorola,

1131

Explain implementation and how is it different from conversion?

Aricent,

1078

Explain what pure virtual function is?

Aricent,

1016

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

Aricent,

1079

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

Aricent,

1017

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

Aricent,

1108

Can you make a constructor final in Java?

SwanSoft Technologies,

1129

Differences between C and Java?

TCS,

1193

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Un-Answered Questions { Core Java }

What are latest features introduced with java 8?

1080

Explain methods specific to list interface?

971

What is string made of?

952

What is unmodifiable collection in java?

922

Define a java class.

1433

Can we have return statement in finally clause? What will happen?

963

Why is stringbuffer not immutable?

1076

How to retrieve data from database in java using arraylist?

1054

What does indexof mean?

1020

What are 3 boolean operators?

1000

How do you use equal in java?

1072

How do you know if a value is nan?

1057

What is a functional interface?

1016

What are default methods ?

1039

What are keywords and reserved words in java?

1056

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