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 ?

1105

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

1068

Can we rethrow the same exception from catch handler?

1149

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 1814

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 ?

1112

Explain the importance of finally over return statement?

1054

Explain the importance of thread scheduler in java?

1029

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Un-Answered Questions { Core Java }

What super () does in java?

923

What is the difference between jdk, jre, and jvm?

1134

How does the garbage collector works in java?

1102

Why there are some null interface in java? What does it mean?

1145

What are the 3 types of loops in java?

1104

Can one thread block the other thread?

1043

what do you mean by stream pipelining in java 8? Explain

1040

What is the use of arrays tostring () in java?

1053

Why are data types important?

1117

What are the advantages of exception handling in java?

1075

What is a literal coding?

1039

What is entry set in java?

1166

How are the elements of a gridbaglayout organized in java programming?

995

Is it possible to write a regular expression to check if string is a number?

1043

which pattern is default in scanner package?

2247

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