Recent posts under tag java

+3 votes

0 answers

How Function Interfaces Work in Java 8?Please explain with example?

posted Jul 9, 2015 by Karthick.c

+1 vote

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In which cases we should override only hashCode(), in which only equals() and in which both in Java?

posted Jul 9, 2015 by anonymous

+1 vote

1 answer

How can I return value from Java Thread ?

posted Jul 6, 2015 by Pardeep Kohli

+2 votes

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What is real time use of inner class in Java? And what are the benefits of using it?

posted Jul 5, 2015 by anonymous

+2 votes

1 answer

Why do I need to override the equals and hashCode methods in Java?

posted Jul 4, 2015 by anonymous

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1 answer

C/Java: How to program to check if input matrix is a valid sudoku solution?

posted Jul 2, 2015 by anonymous

+1 vote

1 answer

How do you reverse LinkedList in place in Java?

posted Jun 29, 2015 by anonymous

+3 votes

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When to use Thread class and When to use Runnable interface in order to create a thread??

posted Jun 27, 2015 by Prakash Singh

+1 vote

1 answer

How object class is inherited into all the Java class without having extends Keyword?

posted Jun 24, 2015 by anonymous

+2 votes

1 answer

What is the concept of Singleton class in standalone app or in simple java program?

posted Jun 24, 2015 by anonymous

+2 votes

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When and how is a Java class initialized?

posted Jun 22, 2015 by Karthick.c

+2 votes

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When and how is a Java class loaded?Please explain in detail with scenario?

posted Jun 22, 2015 by Karthick.c

+3 votes

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What does it mean by saying "load a class" please explain?

posted Jun 22, 2015 by Karthick.c

0 votes

1 answer

What is the use of constructor in abstract class when an instance of that class can't be created in Java ?

posted Jun 21, 2015 by Harshita

+1 vote

1 answer

What is the use of Interface default method in Java 8, how can it be useful in real life applications?

posted Jun 20, 2015 by anonymous

+1 vote

Multiple Positions at TCS

posted Jun 19, 2015 by anonymous

+2 votes

1 answer

What is internal processing of HashMap in Java ?

posted Jun 18, 2015 by anonymous

+1 vote

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What is need of DataStream class in java while we have other stream class can do the same thing??

posted Jun 17, 2015 by Prakash Singh

–1 vote

2 answers

Why to choose C/C++ over Java?

posted Jun 17, 2015 by anonymous

+3 votes

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What do Java objects look like in memory during run-time?

posted Jun 16, 2015 by Karthick.c

+3 votes

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How does a Java array look like in memory?Please Explain for one dimension and two dimension array memory location?

posted Jun 16, 2015 by Karthick.c

+1 vote

1 answer

Java: How to implement duplicate key for a HashMap?

posted Jun 16, 2015 by anonymous

+1 vote

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How does JDBC write data over network. Does it use serialization?

posted Jun 15, 2015 by anonymous

+4 votes

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How to convert byte array to an image file?please explain Pragmatically using Java?

posted Jun 11, 2015 by Karthick.c

+4 votes

0 answers

How to convert image to byte array please explain Pragmatically using Java?

posted Jun 11, 2015 by Karthick.c

+1 vote

1 answer

How can we create an Object instance without using new in Java?

posted Jun 11, 2015 by anonymous

+1 vote

1 answer

What is Java Collections Framework? Please provide list of benefits of Collections framework?

posted Jun 9, 2015 by Karthick.c

+2 votes

0 answers

What is the internal representation of null in the memory when say we assign null to a string variable in Java?

posted Jun 8, 2015 by Karthick.c

+2 votes

2 answers

What is meant by Collections.copy in Java?

posted Jun 8, 2015 by Karthick.c

+2 votes

0 answers

Java:In client-server architecture is it possible to give custom msg to client if OutOfMemoryError occurs on server side

posted Jun 5, 2015 by anonymous

+3 votes

1 answer

How can we sort an array having binary values using Java or C?

posted Jun 4, 2015 by anonymous

+2 votes

1 answer

What is the difference between Collections.emptyList() vs new instance?

posted Jun 3, 2015 by Karthick.c

+1 vote

1 answer

How do I remove repeated elements from ArrayList?

posted Jun 3, 2015 by Karthick.c

+2 votes

1 answer

Java: What is the significance of creating Sub class object using super class reference?

posted Jun 2, 2015 by anonymous

+3 votes

1 answer

How to find if a thread holds lock on particular object in Java?

posted Jun 1, 2015 by anonymous

+2 votes

1 answer

Error facing during Jenkin compilation?

posted May 30, 2015 by Kali Mishra

+3 votes

1 answer

Java: What is the difference between ArrayList and CopyOnWriteArrayList?

posted May 29, 2015 by anonymous

+4 votes

0 answers

What is the best way to filter a Collection?

posted May 27, 2015 by Karthick.c

+3 votes

1 answer

When to use LinkedList over ArrayList Explain in detail?

posted May 27, 2015 by Karthick.c

+5 votes

1 answer

How to an add element in middle of Java ArrayList?

posted May 27, 2015 by anonymous

+2 votes

0 answers

Please help me to write LRU cache using Treemap in Java?

posted May 26, 2015 by anonymous

+5 votes

0 answers

How many ways you can write Singleton Class in Java?

posted May 21, 2015 by Karthick.c

+3 votes

1 answer

Why Singleton is Anti pattern?

posted May 21, 2015 by Karthick.c

+4 votes

1 answer

How to deploy Java Application developed on Eclipse (Windows) to Linux?

posted May 21, 2015 by anonymous

+2 votes

1 answer

When to use Static Class in place of Singleton in Java?

posted May 19, 2015 by Karthick.c

0 votes

1 answer

How can allow duplicate value in set in Java?

posted May 18, 2015 by anonymous

+2 votes

1 answer

What Is The Difference Between ClassNotFoundException And NoClassDefFoundError In Java?

posted May 16, 2015 by anonymous

0 votes

1 answer

Upgrade of legacy system from old Java version (1.3/1.4) to latest Java 8?

posted May 15, 2015 by Vikalp Kumar

+1 vote

1 answer

How to find missing number from arraylist, numbers added randomly?

posted May 13, 2015 by anonymous

+2 votes

1 answer

How to access value of variable in Driver class which has been declared and modified inside Mapper class?

posted May 12, 2015 by Sudhakar Singh