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

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Java Related Interview Questions

Questions Answers Views Company eMail

what are upcasting and downcasting?

5 18615

what is the diff b/w arraylist and vector?

Code Genesis, Genesis, Sprintine Labs,

6 12041

what is the difference between cell phone and mobile phone?

1 4602

PreparedStatement is a pre compiled statement but where it's pre compiled ?

4 12712

What is actual difference between statement,prepared statement and callable statement and when we have to use it? pls post a answer with code and clear explanation. thanks

2 14462

Write an algorithm program in java for the following question.. 1) S is a set of integers.X is an integer obtained by sum of two digits in S. Write logic for whether or not the X is from the S. The time of algorithm should not exceed o(n logn).

1 2272

Write an algorithm program in java for the following question.. In a VLSI design techniques,they used rectangles to design circuits. EVery rectangle is to be placed according to x,y coordinates. Check whether or not two rectangles overlap each other. Here overlapping of rectangles is acceptable, if 1) one rectangle intersect with other. 2) one rectangle fully covers other. The time of algorithm should not exceed o(n logn).

1 2805

what is midlet?

7 11363

can we access the super class method using subclass object?

4 8657

what is use of marker interface? give me good example?

2 6368

what is use of threads how many ways to create thread

iTrust, Verizon,

3 10960

is it possible to create single instance of java class per session in web application

4 11523

where exactly the servlets and jsp's are stored?

CG-VAK, JHJ, TCS,

6 15233

can we create a own jdbc driver? how can we create?

HCL,

1 5626

what are the drawbacks of JDBC? explain briefly?

5 42311

Un-Answered Questions { Java Related }

What is the java api?

986

How can you inject java collection in spring?

503

Differentiate between static and non-static methods in java.

1115

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

1095

Is minecraft 1.15 out?

1038

What is the first argument of the string array in main method?

1025

What is parsing in java?

1030

What is a constructor overloading in java?

1121

explain different ways of using thread? : Java thread

1079

How does java handle integer overflows and underflows?

1111

What is lazy class?

480

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

536

What is java string pool?

1076

What is a classloader in java?

1083

What do you mean by an interface in java?

1095

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