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 a instance variable in java?

1089

What is the role of garbage collector in java?

1015

How many types of gc are there in java?

1039

Why are functions called methods in java?

1044

Does java have extension methods?

1047

What is extension method in java?

1092

What is the file extension for java?

1120

Can we start a thread twice in java?

1041

How do you join strings in java?

1112

How do you stop a thread in java?

1111

Is alive and join method in java?

1262

Is alive in java?

1012

Is namespace same as package in java?

1040

What are predicates in java 8?

1076

What are streams in java 8?

1047

Post New Core Java Questions

Un-Answered Questions { Core Java }

What do you mean Abstraction in java?

1122

What is adapter in java?

972

What is the benefit of inner classes in java?

1140

what is thread? What are the high-level thread states? : Java thread

1325

How can we make string upper case or lower case?

1139

What is string english?

1070

Explain the importance of join() method in thread class?

1135

How to avoid memory leak in java?

1180

How many types of constructors are used in java?

1266

Is node a data type in java?

1060

What is data type modifier?

991

What is OOP Language?

1120

Can we restart a dead thread in java?

1048

What is a bubble sort in java?

1003

What is slash r?

1058

For More Un-Answered { Core Java } Questions Click Here