Define a Student class (roll number, name, percentage). Define a default and parameterized constructor. Keep a count of objects created. Create objects using parameterized constructor and display the object count after each object is created. (Use static member and method). Also display the contents of each object.

 In this tutorial ,we are going to learn how we can Define a Student class (roll number, name, percentage). Define a default and parameterized constructor. Keep a count of objects created. Create objects using parameterized constructor and display the object count after each object is created. (Use static member and method). Also display the contents of each object.

Program ::--

import java.util.*;

class student

{

int rno;

String name;

float per;

student()

{

System.out.println("You are in default constructor :");

}

student(int rno,String name,float per)

{

this.rno=rno;

this.name=name;

this.per=per;

}

static int cnt=0;

static void  obj()

{

cnt++;

System.out.println("Object created :"+cnt);

}

void display()

{

System.out.println("Student roll no:"+rno);

System.out.println("Student name:"+name);

System.out.println("Student percentage:"+per);

}

public static void main(String a[])

{

Scanner sc=new Scanner(System.in);

System.out.println("Enter How many student information do you want to store ?");

int n=sc.nextInt();

student s=new student();

student s1[]=new student[n];

for(int i=0;i<n;i++)

{

System.out.println("Enter Student roll no :");

int rno=sc.nextInt();

System.out.println("Enter Student name :");

String name=sc.next();

System.out.println("Enter Student percentage :");

float per=sc.nextFloat();

s1[i]=new student(rno,name,per);

s1[i].obj();

s1[i].display();

}

}

}

Output ::--

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