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 is array pointers ?

Amdocs,

1089

What is better- service oriented or batch oriented solutions?

Amdocs,

2303

What is difference between an object and a class?

Amdocs,

1176

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

Amdocs,

1076

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

Amdocs,

1358

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

Amdocs,

1109

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

Amdocs,

1129

Differentiate between class and structure.

Amdocs, Motorola,

1194

Explain implementation and how is it different from conversion?

Aricent,

1139

Explain what pure virtual function is?

Aricent,

1075

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

Aricent,

1139

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

Aricent,

1060

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

Aricent,

1158

Can you make a constructor final in Java?

SwanSoft Technologies,

1199

Differences between C and Java?

TCS,

1294

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Un-Answered Questions { Core Java }

What is literal example?

1017

What is oop in java?

1167

What is the purpose of the main method?

1046

how to handle exceptions in ejb?

2369

What is preparedstatement in java?

1105

What is the meaning of I ++ in java?

1252

How do you bind variables?

1159

Is char a data type in java?

1017

Define interface in java?

1132

What is the advantage of functional interface in java 8?

1052

What is the difference between hashset and treeset in java?

1112

Hi all, I am dng a mini project on FileSplitter application which splits the GBs of logfile into Smaller chunks(mbs) depending on the split size." How to handle GBs file? I am getting OutOfMemoryException, when I input such GB sized file. Thx

2184

What is the size of an array?

1085

What is difference between ++ I and I ++ in java?

1035

Is void a type?

1030

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