/* switchStatement
 */


//importing JOptionPane class
import javax.swing.JOptionPane;

//menu options using switchStatement
public 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'