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Core Java Interview Questions
Questions Answers Views Company eMail

briefley expalin about the packages

3 2222

explain about method overloading and method overriding with difficult examples

4 4364

explain the concept of virtual method invocation in polymorphism in detail?

TCS,

1320

Addition to previous section relative word 5th one was Putrid ans: rotten, also there was prob. in 1st section on bucket weight ans:10kg, also there was a prob. on train speed to find bridge length ans:800 mtrs.

V2 Solutions,

1159

we have a 100 classes at that time which class we have to write main method? pls help me

Wipro,

6 4625

class A { public void disp(int a,int b) { System.out.println("hai"); } } class B { public void disp(int a,int b,int c) { System.out.println("hai"); } } above program is overloading or overriding?

Infosys, Wipro,

9 8658

where to use join method and explain with real time senario?and programatical explenation also..

TCS,

1 3211

In a container there are 5 components. I want to display all the component names, how will you do that?

1123

What is the exact difference in between Unicast and Multicast object?

1066

Where will it be used?

993

What is the main functionality of the remote reference layer?

986

How do you download stubs from Remote place?

930

I want to store more than 10 objects in a remote server? Which methodology will follow?

2187

What is the main functionality of Prepared Statement?

4 4955

What is meant by Static query and Dynamic query?

2 4788


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Un-Answered Questions { Core Java }

What is ‘has a’’ relationship in java?

178


What are the kinds of polymorphism?

161


What are different types of states exist for a thread?

149


How do you escape sequences in java?

112


What do you mean by platform independence of Java?

152






Is ++ operator is thread safe in java?

96


How do you decide when to use arraylist and linkedlist?

146


How do you remove spaces in java?

110


Is heap stored in ram?

97


How concurrent hashmap works?

130


What is meant by polymorphism?

135


What is difference between char array and string?

128


What is sorting algorithm in java?

118


What is the use of http-tunneling in rmi?

140


Why synchronization is important?

138