Java program to display any two subject marks and sports scores of the student also total marks using interface...

Java Code:

9)

//Write a java program to display any two subject marks and sports scores of the student, also find the total marks using interface...
import java.util.Scanner;
class stud
{
int roll;
void getnum()
{
Scanner in=new Scanner(System.in);
System.out.println("Enter rollnumber");
roll=in.nextInt();
}
void putnum()
{
System.out.println("rollnumber:"+roll);
}
}
class test extends stud
{
int p1,p2;
void getmark()
{
Scanner in=new Scanner(System.in);
System.out.println("Enter mark1");
p1=in.nextInt();
System.out.println("Enter mark2");
p2=in.nextInt();
}
void putmark()
{
System.out.println("marks obtained");
System.out.println("part1:"+p1);
System.out.println("part2:"+p2);
}
}
interface sports
{
void gets();
void puts();
}
class res extends test implements sports
{
float tot,s;
public void gets()
{
Scanner in=new Scanner(System.in);
System.out.println("Enter sports score");
s=in.nextFloat();
}
public void puts()
{
System.out.println("sports:"+s);
}
void disp()
{
tot=p1+p2+s;
putnum();
putmark();
puts();
System.out.println("total score:"+tot);
}
}
class prgr9
{
public static void main(String[] a)
{
res s1=new res();
s1.getnum();
s1.getmark();
s1.gets();
s1.disp();
}
}

OUTPUT:

C:\Users\PRIYA\Desktop\java>javac prgr9.java

C:\Users\PRIYA\Desktop\java>java prgr9
Enter rollnumber
130
Enter mark1
89
Enter mark2
90
Enter sports score
8.9
rollnumber:130
marks obtained
part1:89
part2:90
sports:8.9
total score:187.9