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

Core Java Interview Questions

Questions Answers Views Company eMail

briefley expalin about the packages

3 4545

explain about method overloading and method overriding with difficult examples

4 7242

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

TCS,

2223

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,

2166

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

Wipro,

6 8193

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 13871

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

TCS,

1 4894

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

2192

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

2124

Where will it be used?

1944

What is the main functionality of the remote reference layer?

1999

How do you download stubs from Remote place?

1792

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

3206

What is the main functionality of Prepared Statement?

4 7694

What is meant by Static query and Dynamic query?

2 6547

Post New Core Java Questions

Un-Answered Questions { Core Java }

Why are functions called methods in java?

1008

What do you mean by chromounits in java8?

957

What class allows you to read objects directly from a stream?

1323

How can we run a java program without making any object?

1049

What is java reflection?

988

Can a class be declared as static?

1172

What is the use of conditional statement?

985

What is difference between wait and notify in java?

1145

What are the supported platforms by java programming language?

1047

What is the use of singleton?

967

Can java program run without jre?

1015

What are the access modifiers available in java?

1133

Why does java have two ways to create child threads?

957

What are the 4 versions of java?

1169

Explain inner classes ?

1132

For More Un-Answered { Core Java } Questions Click Here