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 method overloading in java ?

1107

Can we catch more than one exception in single catch block?

1073

Can we rethrow the same exception from catch handler?

1150

Explain restrictions for using anonymous inner classes?

1107

What is the purpose of nested class in java?

1101

List java api that supports threads?

1 1816

Explain about anonymous inner classes in java?

1104

When do we use synchronized blocks and advantages of using synchronized blocks?

1243

Can we have a method name same as class name in java?

1063

What are different types of multitasking?

975

What are checked exceptions?

1048

What is ‘has a’’ relationship in java?

1240

Explain different types of thread priorities ?

1113

Explain the importance of finally over return statement?

1056

Explain the importance of thread scheduler in java?

1029

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Un-Answered Questions { Core Java }

What is the difference between compare and compareto in java?

1047

What about instanceof operator in java?

1036

Is a method a procedure?

1066

How do generics work in java?

1054

What type of language is java?

1012

How do you declare an array that will hold more than 64KB of data?

1314

Why are generics used?

997

What’s the difference between the methods sleep() and wait()?

1031

How do you check if a number is a perfect square?

1007

What is nextint java?

1080

Difference between process and thread?

1048

What does \ mean in regex?

1249

Explain about features of local inner class?

1146

Explain about automatic type conversion in java?

1058

What is predicate in java?

1073

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