10) Write a Java program that finds average marks of two subjects also display student name and marks using constructor instance variable.

source file name:  MarksDemo.java 

class Marks

{

int sub1 , sub2;

public Marks(int s1, int s2) // definition constructor

{

sub1=s1;

sub2=s2;

}

}

class Marks1

{

String name;

Marks m;

public Marks1(String nm,int s1, int s2) // definition constructor

{

m=new Marks(s1,s2);

name=nm;

}

public void display()

{

System.out.println("student name "+name+" Marks are: "+m.sub1+" ,"+m.sub2);

}

public void avg()

{

int avg;

avg=(m.sub1+m.sub2)/2;

System.out.println(" Average Marks: "+avg);

}

}

class MarksDemo

{

public static void main(String as[])

{

//Creating objects with constructor

Marks1 ob1=new Marks1("Milind Patil",74,78); 

Marks1 ob2=new Marks1("Sanket Shinde",64,70); 

ob1.display();

ob1.avg();  

ob2.display();

ob2.avg();  

}

}

output:

D:\JavaPrograms\Constructors>javac MarksDemo.java

D:\JavaPrograms\Constructors>java MarksDemo

student name Milind Patil Marks are: 74 ,78

 Average Marks: 76

student name Sanket Shinde Marks are: 64 ,70

 Average Marks: 67