/* switchStatement *///importing JOptionPane classimport javax.swing.JOptionPane;//menu options using switchStatementpublic class Step1Driver { public static void main(String[] args) { String idno, name, dob; Double fees; Step1Class step1[] = new Step1Class[Step1Class.MAXNUMS]; Step1Class s1 = new Step1Class(); // Initialise Database step1[Step1Class.nStudents] = s1; Step1Class.nStudents++; String menu="Enter a number to choose one of the following :\n"+ "(1) Add a student\n"+ "(2) Search for student ID number\n"+ "(3) Search for student name\n"+ "(4) Calulate total number of students\n"+ "(5) Calculate total fees\n"+ "(6) Display current database\n"+ "(0) Quit\n"; int option; // used to store users selection String strOption; do { // Reading menu-input strOption=JOptionPane.showInputDialog(null,menu, "Student-TrialTest",JOptionPane.INFORMATION_MESSAGE ); option = Integer.parseInt(strOption); // switch statement switch(option){ // add a student to the database case 1: if (Step1Class.nStudents == step1.length) { JOptionPane.showMessageDialog(null,"Class is full!!!","!!!", JOptionPane.ERROR_MESSAGE); return; } idno = JOptionPane.showInputDialog("Enter ID-NO of new Student"); name = JOptionPane.showInputDialog("Enter Name of new Student"); dob = JOptionPane.showInputDialog("Enter Date of birth of new Student"); fees = Double.parseDouble(JOptionPane.showInputDialog("Enter Fees of new Student")); Step1Class s2 = new Step1Class(idno, name, dob, fees); step1[Step1Class.nStudents] = s2; Step1Class.nStudents++; break; // search for an ID number of a student case 2: JOptionPane.showMessageDialog(null,"InsertCode","Search for ID", JOptionPane.INFORMATION_MESSAGE ); break; // find students name case 3: JOptionPane.showMessageDialog(null,"InsertCode","Search for student name", JOptionPane.INFORMATION_MESSAGE ); break; case 4: JOptionPane.showMessageDialog(null,"InsertCode","Delete a given ID rec", JOptionPane.INFORMATION_MESSAGE ); break; // calculate total amount of students. case 5: JOptionPane.showMessageDialog(null,"InsertCode","Total Amount of student", JOptionPane.INFORMATION_MESSAGE ); break; // calculate total fees for students case 6: DisplayDataBase(step1); break; case 0: // to quit and print an activity report JOptionPane.showMessageDialog(null,"InsertCode","Quit the program", JOptionPane.INFORMATION_MESSAGE ); break; default: JOptionPane.showMessageDialog(null,"Whoops !!!! Number must" + " be between 0 & 7","Error in selection", JOptionPane.ERROR_MESSAGE ); } // end of switch } while(option != 0); // end of loop System.exit(0); // terminate the program } // end of 'main' //******************************** //* methods Defs * //******************************** public static void DisplayDataBase(Step1Class step1[]) { String AllStudents = ""; for(int i = 0; i < Step1Class.nStudents; i++) { AllStudents += step1[i].DisplayRecord(); } JOptionPane.showMessageDialog(null,AllStudents,"Current Database", JOptionPane.INFORMATION_MESSAGE); } } // end of 'class'