Java Data | Yazilim Ders

What are the Advantages of Multithreading in Java ?

Main advantages of Multithreading are...

217 Java

How Multi-threading Works in Java ?

Java provides support for Multithreading. In a Multithreading environment, one process can execute multiple...

185 Java

What is the Difference Between wait and sleep Methods in Java ?

The main difference between wait() and sleep() is that wait is an Object level method, whereas sleep() is a static...

211 Java

What is the Difference Between init-param and context-param in JSP ?

We can specify both init-param and context-param in web.xml file. ..

190 Java

What is the Main Difference Between a Session and Cookie in JSP ?

A Session is always stored at the Server side. In JSP, session is a built-in object in JSP container...

180 Java

How Will You Delete a Cookie in JSP ?

We can use following options to delete a Cookie in JSP...

184 Java

Why Do We Use Static Initializers in Java ?

In Java, a static initializer can run code during the initial loading of a class and it guarantees that this code will...

206 Java

What are the Situations in Which You Choose HashSet or TreeSet in Java ?

HashSet is better than TressSet in almost every way. It gives O(1) for add(), remove() and contains() operations...

193 Java

What are the Different Types of Classloaders in Java ?

Java Classloader is the part of the Java Runtime Environment (JRE) that loads classes on demand into Java Virtual Machine (JVM)...

208 Java

How HashMap Works in Java ?

In Java, a HashMap works on the concept of hashing...

189 Java

How Will You Create a Shallow Copy of a Map in Java ?

In Java, most implementations of Map interface provide a constructor to create copy of another map. But the copy method is not synchronized...

198 Java

Creating a Map with Reverse View and Lookup in Java

In a Map we can lookup for a value by using a distinct key. In a Map with reverse view and lookup, even the values...

197 Java

What is the Difference Between remove Methods of Collection and Iterator in Java ?

In Collection interface remove(Object o) method is used to remove objects from a Collection...

212 Java

When is UnsupportedOperationException Thrown in Java ?

In a Java collection UnsupportedOperationException is thrown when the requested operation is not supported by the collection...

201 Java

How Can We Improve the Performance of IdentityHashMap in Java ?

IdentityHashMap class has one tuning parameter for performance improvement: expectedMaxSize...

189 Java

What is an EnumSet in Java ?

EnumSet is a specialized implementation of Set...

208 Java

What is the Importance of hashCode and equals Methods in Java ?

In a HashMap collection it is very important for a key object to implement hashCode() method and...

194 Java

What is the Difference Between Fail-fast and Fail-safe Iterator in Java ?

Differences between Fail-fast and Fail-safe iterators are as follows...

210 Java

How remove Method is Implemented in a HashMap in Java ?

Remove() method in HashMap uses logic similar to the one used in get() method. First we locate the correct...

202 Java

What are the Differences Between a Vector and an ArrayList in Java ?

An ArrayList is a newer class than a Vector. A Vector is considered a legacy class in Java. The differences are...