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 map java?

976

How to sort array of 0 and 1 in java?

951

Which collection allows duplicate values in java?

971

Is hashset ordered java?

1091

How do you check whether the list is empty or not in java?

980

What is an iterator java?

1109

What is the use of hashmap in java?

1090

How do you compare objects in java?

957

What is temp in java?

1001

How to sort elements in a parallel array in java?

893

Is string a class in java?

985

Are arrays classes in java?

1037

What is arrays fill in java?

1012

What is an empty list in java?

977

How to sort list of list in java?

1094

Post New Core Java Questions

Un-Answered Questions { Core Java }

what is synchronization? : Java thread

1026

What is length in java?

1014

Is assembly language a low level language?

957

How many types of the indexof method are there for strings?

969

Why synchronization is important?

1028

Explain about features of local inner class?

1134

Is a boolean 1 bit?

1076

What is an immutable object? How do you create one in java?

1065

Write an algorithm program in java for the following question.. 1) S is a set of integers.X is an integer obtained by sum of two digits in S. Write logic for whether or not the X is from the S. The time of algorithm should not exceed o(n logn).

2147

What is the use of predicate in java 8?

964

Is null a value?

1040

How do you add an arraylist to an array in java?

982

What is immutability in java?

1090

Why is java called the platform independent programming language?

1007

Can you write a java class that could be used both as an applet as well as an application?

962

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