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Core Java Interview Questions
Questions Answers Views Company eMail

String is an immutable object. Then how can the following code be justified. String s1 = ?ABC?; String s1 = s1+?XYZ?; s.o.p(s1); The output is ABCXYZ, which is the value of s1 ?

Flextronics, Keane India Ltd,

6 18201

Instead of writing Home, Remote Interfaces if i directly extends EJBObject to bean class what happens?

Flextronics,

1 5343

when we write class.forName("any one class"); what happens actually?what it will return?explain stepwise?

6 9370

explain System.out.println

Calpine Technologies, Care, Cognizant, CTS, IBM, IBS, LibSys, Oracle, Spiro Solutions, TCS,

107 201917

What is the use of Getters and Setters method ?

4 16986

What is hard code & soft code?

Cognizant, Wipro,

7 61400

jdbc drivers?

Wipro,

8 15742

Can we declare an anonymous class as both extending a class and implementing an interface?

College School Exams Tests, JVA, TCS, Wipro,

8 18320

what is difference Between Core Java and advance java

HCL, HP, Sambalpur University, TCS, Vensai Technologies, Wipro,

60 176366

how cani read a command line argument?(usingfile object).

3 6630

what is the use/perpose of having a method antive?

2 5779

when asub class inherits a super class and overrides a public method of super class in sub class(public method in super class). why these methods needs to be public in sub class. (otherwise compile time error).

3 6567

what is the difference between statis block and static variable

7 11424

Can we call the Thread.sleep in Synchyronozed block?

Logica CMG,

5 19211

how can we use the servlet as standalone apllication?should we need to extend any class?

Logica CMG,

2 7365


Post New Core Java Questions

Un-Answered Questions { Core Java }

What are the types of methodology?

1103


What is array list in java?

1083


What is namespace in java?

1009


Why pass by reference is not possible in java?

1044


What does .equals do in java?

1098


Which method returns the length of a string?

1041


What is jit compiler in java?

1107


How to change value in arraylist java?

1179


What is covariant return type?

1115


Outline the major features of java.

1078


How do you start a thread?

1039


How many types of parsers are there?

1019


Explain method overloading?

1019


What loop means?

956


Explain listiterator and methods in listiterator?

1021