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 are exception handling keywords in java?

1 1104

What is meant by method overriding?

1 1184

What is the purpose of a transient variable?

1 1133

Difference between notify() method and notifyall() method in java?

1 1023

Explain about public and private access specifiers?

1 1141

What do you mean by constructor?

1 1043

What is the disadvantage of synchronization?

1 1068

Explain about wait() method?

1 1083

What are the java ide’s?

1 1106

What is the final keyword in java?

2 1542

Difference between serialization and deserialization in java?

1 1221

How do you make a thread in java?

1 1159

When to use runnable interface vs thread class in java?

1 1054

Explain thread life cycle in java?

1 1098

What is meant by local variable and instance variable?

1 1064

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Un-Answered Questions { Core Java }

What are the differences between heap and stack memory in java?

1113

What do you mean by an interface in java?

1084

Differentiate between static and non-static methods in java.

1106

How to sort array in descending order in java?

976

What is parsing in java?

1022

What is the difference between break and continue statements?

1107

What is the difference between equals() and == in java?

1022

What is a classloader in java?

1072

Realized?

2239

What is an object in java and how is it created?

1110

explain different ways of using thread? : Java thread

1068

Is minecraft 1.15 out?

1024

Write a program to find the whether a number is an Armstrong number or not?

1085

Write a program to print count of empty strings in java 8?

1071

Explain public static void main(string args[]) in java.

1053

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