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 update method and when it is called?

TCS,

2 19466

When we will use an Interface and Abstract class?

9 28776

While opening the file, what type of exceptions can be caught?

3 6367

What methods are called, When we navigate from one applet to another applet?

1 7240

How 'java' got its name and what it stands for?

Wipro,

11 32255

Where the CardLayout is used?

1 7792

Which Component subclass is used for drawing and painting?

1 3708

Name the method of a Container that can be used to cause a container to be laid out and redisplayed?

1 5293

Which Java operator is right associative?

3 8497

What is the method used to get the absolute value of a number?

2 5759

Name the method that is used to set a TextComponent to the read-only state?

1 5027

In what types of operations an ArithmeticException will be thrown?

3 6903

Which characters are allowed to use as the second character of an identifier, and which characters are not allowed?

2 5333

Which class has no duplicate elements?

8 16525

Which class is extended by all other classes?

4 10482

Post New Core Java Questions

Un-Answered Questions { Core Java }

How to sort array in descending order in java?

976

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

1053

What do you mean by an interface in java?

1084

What is parsing in java?

1022

Realized?

2239

What is a classloader in java?

1072

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

1110

What is java string pool?

1068

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

1112

What is the difference between break and continue statements?

1107

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

1085

Differentiate between static and non-static methods in java.

1106

What is a constructor overloading in java?

1113

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

1071

Is minecraft 1.15 out?

1024

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