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 Classloader in Java?

1299

What is static block?

1194

What is difference between Heap and Stack Memory?

1106

What is difference between path and classpath variables?

1159

Name some OOPS Concepts in Java?

1138

What is ternary operator in java?

1129

What is the importance of main method in Java?

1100

What is an class?

1095

What is multi-catch block in java?

1135

What is anonymous inner class?

1129

What is overloading and overriding in java?

1296

What is the difference between JVM and JRE?

1162

What is static keyword?

1253

Can we have multiple public classes in a java source file?

1278

What is final keyword?

1243

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Un-Answered Questions { Core Java }

State the merge-sort principle and its time complexity.

1038

Does anyone still use java?

1171

Is string is a data type?

993

What is treeset and treemap in java?

1142

What is data structure in java?

1044

How big is a gigabyte?

1109

What is the final field modifier?

1037

What is java thread dump, how can we get java thread dump of a program?

1076

What is instance means in java?

1098

What is static method with example?

1259

Describe how to implement singleton design pattern in struts.

1071

What is byte value?

1054

Describe different states of a thread.

1050

What are the advantages and disadvantages of object cloning?

1170

How dead lock situation occurs in java and how you can identify it?

1053

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