hi this is xyz

hi dear please give me solution regards this ..

i am a new comer in ax..

public void modifiedField(fieldId _fieldId)
{
 //SubjectsTable   subjectsTable = subjectsTable.Total;
   str a;
   ;
   switch(_fieldId)
   {
     case fieldnum(subjectsTable, English):
     case fieldnum(subjectsTable, Hindi):
     case fieldnum(subjectsTable, Maths):
     case fieldnum(subjectsTable, Civics):

    this.Total = this.English+ this.Hindi+ this.Maths+ this.Civics;

    this.Total = a;

    b = this.Total / 4;

    this.

   }
           super(_fieldId);
}

public void modifiedField(fieldId _fieldId)
{
    int a,b;     // int a sotred value and b is str please solve the below code by summing fields. 
    ;
    switch(_fieldId)
    {
        case fieldnum(Student_EduCopy, Subject1):
        case fieldnum(Student_EduCopy, Subject2):
        case fieldnum(Student_EduCopy, Subject3):

            a               = this.Subject1 + this.Subject2 + this.Subject3;
            this.Total      = a;

            b               = a/3;
            this.Percent    = b;

            break;

        default:
                super(_fieldId);
        }

}