BlueJ Java Program using Constructor and Call by Reference

author (ANUPAMA KRISHNAN)
This java program using: Constructor, call by reference
This program take subject marks and name of 2 students and print their Subject wise average,student marks average.


Code:

/*This java program using: Constructor, call by reference
This program take subject marks and name of 2 students and print their Subject wise average,student marks average.*/

public class Student

{

   public String name ;

   public int age , maths , science , eng ;

   public Student( String name1, int age1, int maths1, int science1 , int eng1 )

   {

       name= name1 ;

       age = age1 ;

       maths = maths1 ;

       science = science1 ;

       eng = eng1 ;

   }

  

   public static void main()

   {

       Student stu1 = new Student( "Rani Thomas" , 13 , 70 , 75 , 60 );//calling constructor

       Student stu2 = new Student( "Rhea Anthony" , 14 , 65 , 77 , 66 );

       display( stu1 , stu2 ); // call by reference

       subAvgMks( stu1 , stu2 );

       stuAvgMks( stu1 , stu2 );

   }

   public static void subAvgMks( Student s1 , Student s2 ) // method to calculate avrege marks of each subject

   {

       double mathsAvg = ( s1.maths + s2.maths ) / 2 ;

       System.out.println(" The average marks in maths are : " + mathsAvg ) ;

       double scienceAvg = ( s1.science + s2.science ) / 2 ;

       System.out.println(" The average marks in science are : " + scienceAvg ) ;

       double engAvg = ( s1.eng + s2.eng ) / 2 ;

       System.out.println(" The average marks in english are : " + engAvg ) ;

   }

   public static void stuAvgMks( Student st1 , Student st2 )// method to calculate avrege marks of each students

   {

       double avgs1 = ( st1.maths + st1.science + st1.eng ) / 3 ;

       System.out.println(" The average marks gained by " + st1.name + " is " + avgs1 ) ;

       double avgs2 = ( st2.maths + st2.science + st2.eng ) / 3 ;

       System.out.println(" The average marks gained by " + st2.name + " is " + avgs2) ;   

   }

   public static void display( Student astu , Student bstu )// methods to display all results

   {

       System.out.println(" STUDENT 1 : " ) ;

       System.out.println(" NAME    : "+astu.name);

       System.out.println(" AGE     : "+astu.age);

       System.out.println(" MATHS   : "+astu.maths);

       System.out.println(" SCIENCE : "+astu.science);

       System.out.println(" ENGLISH : "+astu.eng);

       System.out.println(" STUDENT 2 : ");

       System.out.println(" NAME : "+bstu.name);

       System.out.println(" AGE : "+bstu.age);

       System.out.println(" MATHS : "+bstu.maths);

       System.out.println(" SCIENCE : "+bstu.science);

       System.out.println(" ENGLISH : "+bstu.eng);

    }

}

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