Java J2EE Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

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JDBC (771)
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J2EE (485)
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Websphere (573)

Java J2EE Interview Questions

Questions Answers Views Company eMail

all are saying java doesn't support multiple inheritance but by default Object class is super class for all the user defined classes and we can extend atmost one class so each class can extend more than one class so java supports multiple inheritance?i am confused with this,pls any one explain me.

CFG,

8 9734

what are the gbx,gdb and other tools in linux for core dump,and how to configure stdout,stderr..what is the difference between stdout ,stderr and coredump. how to create core dump and view that one? please can anybody explain me?

1 4832

how to know which version of java is running on ur computer using command prompt?

BeBo Technologies,

2 7648

What is there in browser that it supports web based applications of java or any other PL?

2 4593

what is class.forname() and how it will be useful ?

3 6106

how and when compiler knows that the Java code throws the checked Exception.

HSBC,

2 12909

how can we connect to db without using getConnection() method

4 7895

diff. b/w JAVA and javascript...

NIIT,

3 6882

Weblogic admin don't know the admin credentials of weblogic 8.1 UI..how can he get the credentials?

IBM,

2 13686

what is the difference between String s="hello"; and String s=new String("hello");?

3 13948

hi to all,i have a question on static block. i saved below as test.java class test extends a { static { System.out.println("test static"); } public static void main(String []dfs) { } } class a { static { System.out.println("a static"); } public static void main(String []asdf) { } } o/p as static test static but if i change base class as test class then class test { static { System.out.println("test static"); } public static void main(String []dfs) { } } class a extends test { static { System.out.println("a static"); } public static void main(String []asdf) { } } o/p test static explain me why "a static" wasn't print in second code when it is in derived class

1 3759

what are the uses of Class class and what it returns? explain it with the example code.

1 3930

class test { private static void main(String []adsf) { } } explain me that the above code is error or exception

3 5731

class a extends b { } class b extends a { } why java doesn't support cyclic pls explain me with example

Wipro,

3 10126

how to create a jar file in java

1 5243

Un-Answered Questions { Java J2EE }

What is difference between @controller and @restcontroller in spring?

536

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

994

What is lazy class?

480

Write a program to find the whether a number is an Armstrong number or not?

1095

Differentiate between static and non-static methods in java.

1116

What do you know about validation plugin ?

1024

Is minecraft 1.15 out?

1038

How can you inject java collection in spring?

503

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133

What is the difference between equals() and == in java?

1032

What is action chaining ?

1158

What is the difference between filters and interceptors ?

1299

Hi frnds how to lock an user when he enter wrong credentials more than 3 time using java or j2ee tech take username and password in a bean no need to connect DB and validate give me some sample application code or links its urgent for me thanks in advance

2415

What is latest hibernate version?

486

What is an object in java and how is it created?

1128

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