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Core Java Interview Questions
Questions Answers Views Company eMail

what is for datainputstream?

1 2058

What is the use of static keyword in "public static void main()"

College School Exams Tests, Infosys, Six Dee Telecom,

10 7620

what is mena by object block any what is the use of that

CGI,

1395

can any body tell me? does advance java and j2ee both are same.

CTS, Infosys,

4 7873

does core java and j2se both are same?

5 11512

what is difference between signed & unsigned char?

2 3006

What is the blank final variable?

3 4303

difference throws and throw in java

3 3144

What is “try and catch” in java

2 3074

Integer.parse Int(bf.readLine(System.out.println("enter value for n["+m+"]:"))); can it run under this

1 1659

what is mean by ooad? where we are using? can you tell me any real time example?

Eka Software,

1 2499

What is mean by UML? what is the use? where we are using?

Eka Software,

1 3110

Any one can explain how the inerface uses in java. give with example.

IBM,

1 1601

interface X{ void m1(); void m2(); } class Child2 extends Object implements X { public void m1(){ System.out.println("Child2 M1"); } public void m2(){ System.out.println("Child2 M2"); } } public class ParentChildInfterfaceDemo { public static void main(String[] args){ X x = new Child2(); X x1 = new Child2(); x.m1(); x.m2(); x.equals(x1); } } Will the above code work? If yes? Can you please explain why the code x.equals(x1) will work as the equals method is called on interface reference vaiable?

2 3313

how can you say that java is independ language

TCS, Wipro,

2 3618


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Un-Answered Questions { Core Java }

Explain the pointers in Java?

206


what is aggregation in java?

192


Which command from the jdk compiles a java program?

133


Can a method be overloaded based on different return type but same argument type?

193


What kind of variables a class can consist of?

175






What is a java list?

148


How thread scheduler schedule the task?

166


Where local and global variables are stored?

139


Can we assign the reference to this variable?

158


What are structs in java?

171


What is difference between local variable and global variable?

122


What is string data?

140


How to create an immutable class?

171


What are advantages of using Java?s layout managers than windowing systems?

1476


How does compareto method work?

144