Java-Programs/StudentDemo.java at main · CodeWithNehaGeorge/Java-Programs · GitHub

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importjava.util.*;

classStudent
{
staticintcount=0;
introllno;
Stringname;
doublemark1,mark2;
voidsetData(intr,Stringn,doublem1,doublem2)
 {
this.rollno=r;
this.name=n;
this.mark1=m1;
this.mark2=m2;
count++;
 }
voidgetData()
 {
System.out.println("Rollno:"+this.rollno);
System.out.println("Name:"+this.name);
System.out.println("Mark1:"+this.mark1);
System.out.println("Mark2:"+this.mark2);
 }
voidgetTotal()
 {
doubletotal;
total=this.mark1+this.mark2;
System.out.println("Total:"+total);
 }
protectedvoidfinalize()
 {
count--;
 }
staticvoidtotalcount()
 {
System.out.println("Count:"+count);
 }
}

classStudentDemo
{
publicstaticvoidmain(Stringargs[])
 {
Scannerscan=newScanner(System.in);
introll,ch;
doublem1,m2;
Stringna;
Students1=newStudent();
System.out.println("Enter roll no:");
roll=scan.nextInt();
System.out.println("Enter name:");
na=scan.nextLine();
na=scan.nextLine();
System.out.println("Enter mark1:");
m1=scan.nextDouble();
System.out.println("Enter mark2:");
m2=scan.nextDouble();
s1.setData(roll,na,m1,m2);
s1.getData();
s1.getTotal();
Students2=newStudent();
System.out.println("Enter roll no:");
roll=scan.nextInt();
System.out.println("Enter name:");
na=scan.nextLine();
na=scan.nextLine();
System.out.println("Enter mark1:");
m1=scan.nextDouble();
System.out.println("Enter mark2:");
m2=scan.nextDouble();
s2.setData(roll,na,m1,m2);
s2.getData();
s2.getTotal();
Student.totalcount();
System.out.println("Would you like to delete student 1 or student 2:");
ch=scan.nextInt();
if(ch==1)
 {
s1=null;
System.gc();
System.runFinalization();
Student.totalcount();
 }
elseif(ch==2)
 {
s2=null;
System.gc();
System.runFinalization();
Student.totalcount();
 }
 }
}