I'm not able to do the DELETE and the SEARCH options on my list ( HELP!! )

Question

import java.io.*;
public class StudentContactManager
public static void main(String[] args) throws IOException
char userSelection;
final int maxStudents = 10;
String [] Lname = new String [maxStudents];//LName= Last Name
String [] FName= new String [maxStudents];//FName=First Name
String [] En= new String [maxStudents];//En = Enrolment Number
String [] PhoneNo= new String [maxStudents];
int activeEntries = 0;
boolean found = false;
//================================
System.out.println ( "1 - Initialise contact detail list" );
System.out.println ( "2 - Display contact details list" );
System.out.println ( "3 - Insert new entry into cotact detail list" );
System.out.println ( "4 - Delete entry from contact detail list" );
System.out.println ( "5 - Search cotact detail list" );
System.out.println ( "Q - Quit" );
System.out.print ( "Option : " );
userSelection = Text.readChar ( "Enter option" );
while ( userSelection != 'Q' & userSelection != 'q' )
switch ( userSelection )
case '1': activeEntries=0 ;
break;
case '2': if (activeEntries > 0)//IF contact detail list contains entries
System.out.println("\tEnrolment Number\tFirst Name\tSecond Name\tTelephone Number");
for (int i = 0; i<activeEntries; i ++)//FOR each stored contact
{//DO
System.out.println();
System.out.println("\t"+En[i]+"\t"+"\t"+FName[i]+ Lname[i]+"\t"+"\t"+PhoneNo);//Display one/current contact detail
}//END-FOR
else
{// ELSE
System.out.println("Contact detail list empty");//Display �Contact detail list empty� message
}//END-IF
break;
case '3': if(activeEntries<maxStudents)
En[activeEntries]= Text.readString("Enter enrolment number");
found = false;
int i = 0;
while ( !found && i < activeEntries)
if (En[i].equals(En[activeEntries]) )
found = true;
else
i++;
}//end-if
}//end-while
if (found == false)
FName[activeEntries]=Text.readString("Enter first name");
Lname[activeEntries]=Text.readString("Enter last name");
PhoneNo[activeEntries]=Text.readString("Enter telephone number");
// Insert new contact details into contact detail list
activeEntries++;
else
System.out.println("Enrolment number already exists");
else
System.out.println("Contact detail list full");
break;
case '4': Text.showMessage("Selected Option 4");
break;
case '5':Text.showMessage("Selected option 5");
default: Text.showMessage("invalid selection, Please input a valid option");
break;
}//switch
userSelection = Text.readChar ( "Enter option" );
}//while
System.exit(0);
}//main
}//StudentContactManager
//===============================================================================
I need help with case 4 and case 5...the search option should include while statement. and the 5th case is the delete option
Thanks guys =).

Answer 1

Please use the code tags when posting code (there is a button on the posting page for them). It would also help if you told us what you are trying to do, what error you are getting, and what you expect to get.
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