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 11319

posted in online test

1 3208

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 4895

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

5 9630

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

2 4444

why java does compile time polymorphism at run time ?

CTS, TCS,

6 15021

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

Quinnox,

2 17587

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

7 8564

why java does not contain pointers?

Infosys, TCS,

13 16999

can we write program without class

TCS,

6 11057

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 8853

what is AWT

3 5545

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 3407

how to accept integer array in java

Tech Guru,

2 4856

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

SAP Labs,

1 6822

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Un-Answered Questions { Core Java }

What 4 doubled?

933

Why is it called a string?

957

Why we use protected in java?

938

What is void class in java?

931

For class CFoo { }; what default methods will the compiler generate for you>?

1036

What is hashtable and explain features of hashtable?

955

What is the platform?

954

Why null value is used in string?

1001

What is dynamic array in java?

981

What is a line break?

982

What is class and object in java?

961

How do you do descending order in java?

925

List the interfaces which extends collection interface?

902

What is a wrapper method?

1032

What is the major advantage of external iteration over internal iteration?

1049

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