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 the use of collections in java? How it is implemented in real time applications?

2 12683

1.) if we use "private" in place of "public" in public static void main()... 2.) if we use "int" in place of "void".... 3.) can we ommit "static" keyword from that statement.... 4.) also can we give the command line arguments type as int type or float,etc.(.i.e (string args[]))

1 6782

WHAT IS THE SCOPE FOR COREJAVA...? IS JAVA ONLY CORE JAVA ?

2 9814

difference between jsp and java script?

3 5881

When you declare a method as abstract method ?

HP,

2 7144

What is JVM ?

Phantom Technologies, TCS,

4 7457

Why do we need public static void main(String args[]) method in Java...?

1 5221

What is the difference between constructor and method?

4 6908

What is the difference between parameters and arguments ?

2 5596

What is the difference between Java Bean and Java Class.?

2 5544

What is the purpose of a statement block?

1 4490

Can an unreachable object become reachable again?

3 5822

String Reverse in Java...!

5 9133

what difference between throw and throws in exception handling.

5 8437

How to excute - Interface - Inner class- method can any one tell how to execute/ call this main method public interface abc { static int i=0; void dd(); class a1 { a1() { int j; System.out.println("inside"); }; public static void main(String a1[]) { System.out.println("in interfia"); } } }

1 4113

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Un-Answered Questions { Core Java }

When should I use stringbuffer?

1056

What are untrusted applets?

1201

What is extension method in java?

1092

What are exception handling keywords in java?

1098

What's the base class of all exception classes?

1118

What is default constructors?

1078

How to instantiate member inner class?

1147

What are inner classes or non static nested classes in java?

1218

What is parsing a string?

1241

What are strings in physics?

1071

Which java ide is used the most?

1052

Name few java 8 annotations ?

1087

How do you initialize an arraylist in java?

1097

Can a main method be overloaded?

1071

How objects of a class are created if no constructor is defined in the class?

1122

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