Data Bank | Yazilim Ders

How Can You Make an Object Eligible for Garbage Collection in Java ?

To make an Object eligible for Garbage collection, just make sure that it is unreachable to the program in which...

Why Collection Interface Doesn’t Extend Cloneable and Serializable Interfaces in Java ?

Collection interface just specifies groups of objects known as elements. Each concrete implementation of a Collection...

217 Java

What is the Difference Between pass by reference and pass by value in Java ?

Whenever an object is passed by value, it means that a copy of the object is passed. Even if changes are...

216 Java

Enumeration and Iterator, Which One Has Better Performance in Java ?

Enumeration interface is a read-only interface. It has better performance than Iterator. It is almost twice as fast...

188 Java

What is the Difference Between DOM and SAX Parser in Java ?

In Java, Document Object Model (DOM) parser loads the whole XML into memory and creates a tree based...

215 Java

How Can We Print an Array in Java ?

We can print an array by using methods of Arrays class. We can either use Arrays.toString() method or we can...

191 Java

What is Volatile Keyword in Java ?

The volatile keyword guarantees global ordering on reads and writes to a variable. This implies that every thread...

204 Java

What is a Compile Time Constant in Java ?

A compile time constant is public static final variable. The public modifier is optional here. At compile time, they...

196 Java

How Can We Find the Memory Usage of JVM From Java Code ?

We can use memory management related methods provided in java.lang.Runtime class to get the free memory...

234 Java

How Stack and Heap Work in Java Multi-threading Environment ?

In Java, Stack and heap are memory areas available to an application. Every thread has its own stack. It is used...

223 Java

What are the Different States of a Thread in Java ?

Following are the different states of a Thread in Java..

182 Java

What are the Disadvantages of Multithreading in Java ?

There are certain downsides to Multithreading...

191 Java

What are the Advantages of Multithreading in Java ?

Main advantages of Multithreading are...

215 Java

How Multi-threading Works in Java ?

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

182 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...

205 Java

What is Prototype in Javascript ?

All objects in Javascript have property called as prototype, the prototype is an object which has a constructor properties by default...

211 JavaScript

What is Event Capturing in Javascript ?

In the capturing phase, the browser checks to see if the element's outer-most ancestor (<html>) has an onclick...

198 JavaScript

What is Strict Mode in JavaScript ?

Strict mode prevents certain actions and throws more exceptions. The statement “use strict” orders browser...

203 JavaScript

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...