Java Related Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Java J2EE (14736)
J2ME (151)
Java Related AllOther (507)

Java Related Interview Questions

Questions Answers Views Company eMail

How to make a class immutable?

15 31292

If we close the browser,when the specific user session is active.Again if we open browse how to retrive it same user??what code i have to da???

TCS,

5 12748

What is a constructor?

4 6252

What is the difference between Abstract Class and Interface

Amdocs,

8 16109

In HashTable I am storing null value..then what is the error it will show

GM General Motors,

2 12354

In web.xml file instead of *.do can i write *.ibm, Specify with example

IBM,

13 23750

How many ways to remove the session object in the container

Bosch,

6 18552

How to perform Singleton of the java class object on multi JVM?

2 12741

How to send a request to garbage collector?

4 8492

while working struts in intellij 7.0error unable to initialize tld location cache: zip file is closed is displayed anybdy can answer me immdialy .ungert

Banking,

1 2623

when i run Frame program, it display output in supparate window.i try to close using "X" it not close.min'-' & max'+' are working.pls what is problem? i run in editplus. folowing program i given. import java.awt.*; class Form1 { Frame f1=new Frame("loginpage"); Label l1=new Label("username"); Label l2=new Label("password"); TextField tf1=new TextField(); TextField tf2=new TextField(); Button b1=new Button("submit"); Form1() { f1.setLayout(new FlowLayout()); f1.add(l1); f1.add(tf1); f1.add(l2); f1.add(tf2); f1.add(b1); f1.setSize(437,440); f1.setVisible(true); //f1.dispose(); } public static void main(String[] args) { Form1 f=new Form1(); } }

4 9424

java.lang.IllegalArgumentException: The path of an ForwardConfig cannot be null while working with struts it displayed pls very ungent

IBM,

3 22176

What happens when database down in weblogic

HCL,

8 24877

What is the use of RequestDispatcher in servlet?

Accenture, CTS, TCS,

18 56493

How can you say HashMap is syncronized?

Arete, IBM,

14 21699

Un-Answered Questions { Java Related }

Is minecraft 1.15 out?

1037

Find Best Job Vacancies across the world on Jooble!

132

explain different ways of using thread? : Java thread

1079

Can we return resultset in java?

985

What is action chaining ?

1158

i want test pattern of zylog company and some examples also

2855

Can we extract main method from another class?

1026

What is lazy class?

480

What is the first argument of the string array in main method?

1025

What is parsing in java?

1028

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

1124

What do you understand by casting in java language? What are the types of casting?

923

What is the locale class?

1021

What is the difference between filters and interceptors ?

1297

what are the different modes of archival? Explain each mode in two lines each?

994

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