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

Core Java Interview Questions

Questions Answers Views Company eMail

How to call one constructor from the other constructor ?

1124

What is exception handling in java?

1086

What are static blocks and static initalizers in java ?

1142

What is ‘is-a ‘ relationship in java?

1121

Can we use catch statement for checked exceptions when there is no chance of raising exception in our code?

1083

Explain java coding standards for constants?

1067

Explain about features of local inner class?

1191

When a thread is executing a synchronized method , then is it possible for the same thread to access other synchronized methods of an object ?

1099

How to change the priority of thread or how to set priority of thread?

1078

What all access modifiers are allowed for top class ?

1248

In how many ways we can do exception handling in java?

1050

Can we restart a thread already started in java?

1148

Why main() method is public, static and void in java ?

1144

What are abstract methods in java?

1177

What is method in java ?

1149

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Un-Answered Questions { Core Java }

What is difference between array and arraylist in java?

1040

What is a key in java?

1026

What is the difference between the font and fontmetrics classes in java programming?

1266

What are the problems faced by java programmers who don't use layout managers?

1042

Does garbage collection occur in permanent generation space in jvm?

1144

Define reflection.

1055

Is main is a keyword?

1064

What do you mean by formatting?

1050

Explain the difference between an Interface and an Abstract class?

1239

What is application tier?

1190

5 Coding best practices you learned in java?

1064

Why is java architectural neutral?

1169

What is the replace tool?

1267

how does the run() method in runnable work? : Java thread

966

How do you create immutable object in java?

1107

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