Thread: Java Grade Caculator

I need some help here I would like to remove repeated coding for a cleaner look but I am not sure how to do this at this point I already entered a if else to distinguish what will happen with code but I alos had to repeat code to do this is there a way to return the correct output based on the user choice of Graduate or Undergrad?

                if (choice == 1) {
                    do {//do while block
                        try {//try catch block for exception handeling
                            // collect grades of tests
                            for (int i = 0; i < noTests; i++) {
                                System.out.printf("Enter grade number for %s %s %d: ", grad.getFirstname(), grad.getLastname(), i + 1);
                                grad.setGrades(scan.nextInt());                           
                            flag = false;
                            }
                        } catch (InputMismatchException IME) {//catch begin
                            System.err.printf("Exception!\nYou must enter a number. Please try again.\n", IME);//check for improper imput
                            scan.nextLine();                            
                            flag = true;//return to top if ture is false
                        }
                    } while (flag);//End do loop
                    do {//do while block
                        try {//try catch block for exception handeling
                            System.out.printf("Enter Midterm grade for: %s %s ", grad.getFirstname(), grad.getLastname());
                            grad.setmidtermgrad(scan.nextInt());
                            flag = false;
                        } catch (InputMismatchException IME) {//catch begin
                            System.err.printf("Exception!\nYou must enter a number. Please try again.\n", IME);//check for improper imput
                            scan.nextLine();                            
                            flag = true;//return to top if ture is false
                        }
                    } while (flag);//End do loop
                    do {
                        try {//try catch block for exception handeling
                            System.out.printf("Enter final grade for: %s %s ", grad.getFirstname(), grad.getLastname());
                            grad.setfinalgrade(scan.nextInt());
                            flag = false;
                        } catch (InputMismatchException IME) {//catch begin
                            System.err.printf("Exception!\nYou must enter a number. Please try again.\n", IME);//check for improper imput
                            scan.nextLine();                            
                            flag = true;//return to top if ture is false
                        }
                    } while (flag);//End do loopp                  
                    //collect information and display results
                    System.out.printf("Average grade for: %s %s %.2f\n", grad.getFirstname(), grad.getLastname(), grad.getGradeAvg());
                    System.out.printf("THE FINAL GRADE FOR STUDENT: %s %s %.2f\n", grad.getFirstname(), grad.getLastname(), grad.getFinalGrade());
                } else if (choice == 2) {//begin else statement
                    do {//do while block
                        try {//try catch block for exception handeling
                            // collect grades of tests
                            for (int i = 0; i < noTests; i++) {
                                System.out.printf("Enter grade number %d: ", i + 1);
                                Grad.setGrades(scan.nextInt());
                            }
                            flag = false;
                        } catch (InputMismatchException IME) {//catch begin
                            System.err.printf("Exception!\nYou must enter a number. Please try again.\n", IME);//check for improper imput
                            scan.nextLine();                            
                            flag = true;//return to top if ture is false
                        }
                    } while (flag);//End do loop
                    do {
                        try {//try catch block for exception handeling
                            System.out.printf("Enter final grade for: %s %s ", Grad.getFirstname(), Grad.getLastname());
                            Grad.setfingrade(scan.nextInt());
                            flag = false;
                        } catch (InputMismatchException IME) {//catch begin
                            System.err.printf("Exception!\nYou must enter a number. Please try again.\n", IME);//check for improper imput
                            scan.nextLine();                            
                            flag = true;//return to top if ture is false
                        }
                    } while (flag);//End do loop
                    System.out.printf("Average grade for: %s %s %.2f\n", Grad.getFirstname(), Grad.getLastname(), Grad.getGradeAvg());
                    System.out.printf("THE FINAL GRADE FOR STUDENT: %s %s %.2f\n", Grad.getFirstname(), Grad.getLastname(), Grad.getFinGrade());
                }
 
    } //End Main Method
} //End Class Egingras_week13

For reusability, you have to think about it. Which part of the whole program needs to be executed again and again, make it as a function and so on.