Answers for "constructor overloading and use it program in java"

1

constructor overloading

Constructor overloading in Java is a technique of having more than
one constructor with different parameter lists. 
They are arranged in a way that each constructor performs a different task.
They are differentiated by the compiler by the number
of parameters in the list and their types.

class Student5{  
    int id;  
    String name;  
    int age;
    
    Student5(int i,String n){  
    	id = i;  					//creating two arg constructor
    	name = n;  
    }
    
    Student5(int i,String n,int a){  
    	id = i;  
    	name = n;					//creating three arg constructor    
    	age=a;  
    }  
    
    void display(){System.out.println(id+" "+name+" "+age);}  
    	public static void main(String args[]){  
    	Student5 s1 = new Student5(111,"Karan");  
    	Student5 s2 = new Student5(222,"Aryan",25);  
    	s1.display();  
    	s2.display();  
   }  
}
Posted by: Guest on May-14-2021
0

constructor overloading in java

class Student{
	private String stuname;
	private String stuid;
	private int stuage;

	Student(){
		System.out.println("this a default constructor");
		
	}
	Student(String stuname,String stuid,int stuage){
		this.stuname=stuname;
		this.stuid=stuid;
		this.stuage=stuage;
	}

	public String getStudentName(){
		return stuname;
	}
	public String getStudentId(){
		return stuid;
	}
	public int getStudentAge(){
		return stuage;
	}

}

public class Constructor_OverloadingExample{
	public static void main(String[] args){
		Student stu=new Student();//calling the default constructor
		Student student=new Student("Khubaib","CSC-17F-129",22);//calling a parameterized constructor with sets the value of parameters
		System.out.println("Student Name: "+student.getStudentName());
		System.out.println("Student ID: "+student.getStudentId());
		System.out.println("Student Age: "+student.getStudentAge());


	}
}
Posted by: Guest on August-25-2021

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