JAVA EXAMPLE PROGRAMS

JAVA EXAMPLE PROGRAMS

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Java Constructor Chaining Examples

Calling another constructor in the same class from another constructor is called constructor chaining. By using this() we can call another constructor in the same class. Incase we want to call another constructor, this() should be the first line in the constructor. Below example shows code for constructor chaining.

Java Constructor Chaining Sample Code

Code:
package com.myjava.constructors;

public class MyChaining {
    
    public MyChaining(){
        System.out.println("In default constructor...");
    }
    public MyChaining(int i){
        this();
        System.out.println("In single parameter constructor...");
    }
    public MyChaining(int i,int j){
        this(j);
        System.out.println("In double parameter constructor...");
    }
    
    public static void main(String a[]){
        MyChaining ch = new MyChaining(10,20);
    }
}

Example Output

In default constructor...
In single parameter constructor...
In double parameter constructor...

Other Constructor Examples

Knowledge Centre
Stream and types of Streams
A Stream is an abstraction that either produces or consumes information. There are two types of Streams and they are:

Byte Streams: Provide a convenient means for handling input and output of bytes. Byte Streams classes are defined by using two abstract classes, namely InputStream and OutputStream.

Character Streams: Provide a convenient means for handling input & output of characters. Character Streams classes are defined by using two abstract classes, namely Reader and Writer.
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About Author

I'm Nataraja Gootooru, programmer by profession and passionate about technologies. All examples given here are as simple as possible to help beginners. The source code is compiled and tested in my dev environment.

If you come across any mistakes or bugs, please email me to [email protected].

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Reference: Java™ Platform Standard Ed. 7 - API Specification | Java™ Platform Standard Ed. 8 - API Specification | Java is registered trademark of Oracle.
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