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

Core Java Interview Questions

Questions Answers Views Company eMail

system.out.println(1 + 3);

8 11544

posted in online test

1 3293

if am have 100 threads(for ex:T1,T2---T100) how we give priority to these threads and how the system excute these threads

2 4987

What is the multilevel inheritance. and also give the Example of it ?

5 9819

Can Anybody tell the diff b/w jdk1.6 and latest version.

2 4534

why java does compile time polymorphism at run time ?

CTS, TCS,

6 15216

what is the use of clone() in real time scenario?

Quinnox,

2 17695

what is the use of thread?Justify it by project point of view

7 8788

why java does not contain pointers?

Infosys, TCS,

13 17429

can we write program without class

TCS,

6 11270

I want to run a simple hello world java (HelloWorld.java) program using a batch file. How can i run it and how to construct a batch file.

Infosys,

1 8926

what is AWT

3 5707

What happens when a class is made static like if a field or member is made static it becomes class variable and is shared by all the object of the class?

1 3495

how to accept integer array in java

Tech Guru,

2 4938

how to print hello world every second till i have pressed enter key ???

SAP Labs,

1 6901

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Un-Answered Questions { Core Java }

Is there any case when finally will not be executed?

952

Similarity and difference between static block and static method ?

919

Explain about strings in java?

1076

Explain the scope of a variable.

1099

What is keyset in java?

1083

What are recursive functions? Give some examples?

1193

What are the 6 functions?

976

What are the restriction imposed on a static method or a static block of code?

1060

What are the types of web technologies?

1044

Can we have any code between try and finally blocks?

1021

What will be the default values of all the elements of an array defined as an instance variable?

1030

What methodology can be utilized to link to a database?

968

How can constructor chaining be done by using the super keyword?

1094

What is string buffer?

949

Explain about narrowing conversion in java?

1014

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