constructor example

Constructor Example in Java

In this tutorial, you will learn about constructor example.

What is Constructor?

A Java constructor is a method that is invoked when an object is created. To put it another way, when you use the new keyword. A Java constructor’s purpose is to initialize the newly created object before it is used.  

Example:

class Constructor {
	Constructor() {
		System.out.println("I am default constructor");
	}
 
	public static void main(String[] args) {
		Constructor obj = new Constructor();
	}
}

Output:

I am default constructor

In Java, the datatypes double and float are used. Despite the fact that they both represent floating-point literals, there are a few minor differences between them. In this post, I’ll explain the differences between float and double in Java, as well as when to use float over double or double over the float, as well as some code examples. In Java, the datatypes double and float are used. Despite the fact that they both represent floating-point literals, there are a few minor differences between them. In this post, I’ll explain the differences between float and double in Java, as well as when to use float over double or double over the float, as well as some code examples. In Java, the datatypes double and float are used. Despite the fact that they both represent floating-point literals, there are a few minor differences between them. In this post, I’ll explain the differences between float and double in Java, as well as when to use float over double or double over the float, as well as some code examples. In Java, the datatypes double and float are used. Despite the fact that they both represent floating-point literals, there are a few minor differences between them. In this post, I’ll explain the differences between float and double in Java, as well as when to use float over double or double over the float, as well as some code examples. In Java, the datatypes double and float are used. Despite the fact that they both represent floating-point literals, there are a few minor differences between them. In this post, I’ll explain the differences between float and double in Java, as well as when to use float over double or double over the float, as well as some code examples. In Java, the datatypes double and float are used. Despite the fact that they both represent floating-point literals, there are a few minor differences between them. In this post, I’ll explain the differences between float and double in Java, as well as when to use float over double or double over the float, as well as some code examples.

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