Constructor Java Training in Chennai is a block of code in the program, the constructor is the same as a method, the constructor doesn’t have any return type where the method has a return type. Constructor name is same as the class name
Constructor with arguments Java Training Institute in Chennai is known as a parameterized constructor.
Advantages of constructor
When we use constructor at the time of writing Java application then we get the following advantages.
1) It eliminates placing default values.
2) It eliminates calling ordinary methods.
Characters of constructor
If we want to use a constructor as a part of the Java program then we have followed properties.
1) A constructor will be called by the JVM implicitly when the object is created.
2) Constructor Core Java Training in Chennai name is most similar to a class name.
3) A constructor will not have any return type even void also
( if we write any return type then it will be treated as "Ordinary Method".)
4) A constructor should not be static ( because of constructor calling each & every time when an object is created ).
5) The constructor of java never participates in the inheritance process (Because every constructor is meant for initializing with their own data member but not data member of another class.
a)If the access modifier of the constructor is private then an object of a corresponding Java Training Institute in Chennai class can be created in the class context but not in another class context.
b) If the access modifier of the constructor not private then an object of the corresponding class can
be created both class context and in another class context.
Constructors are classified into three types, they are:
3)Parameterized Constructor
The default constructor is nothing but a simple constructor, it is enclosed in the .class file, Core Java Training in Chennai the default constructor will automatically Include in the file.
When the user doesn’t include the default constructor, the source code will automatically enclose the constructor to the .class file
Example of Default Constructor:
public static void main(String[] args) {
System.out.println(obj.name);
No-arg constructor is defined as Constructor with no arguments.it is same as default constructor.Java Training in chennai
Example of no-arg Constructor:
System.out.println("This is a no argument constructor");
public static void main(String args[]) {
Parameterized Constructor:
Example of Parameterized Constructor:
//parameterized constructor with two parameters
Employee(int id, String name){
System.out.println("Id: "+empId+" Name: "+empName);
public static void main(String args[]){
Employee obj1 = new Employee(10245,"Chaitanya");
Employee obj2 = new Employee(92232,"Negan");
Id: 10245 Name: Chaitanya
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