我的教授对我的代码说了这个 请帮助我，我不知道他希望我用我的代码做什么
// The following code (mark by "-")can be replace by getEntryDetails(AddressBookEntry entry)
// you can just pass "addent" to the method
// always try to reuse as much methods/codes as possible
请帮助我，我不知道他希望我用我的代码做什么 这是一个包含3个类的地址簿，这是我真正遇到问题的类之一
import java.util.Scanner;
public class AddressBookApp {
private static Scanner dataReader;
private static AddressBook book;
// TODO Address Book App
public static void main(String[] args) {
book = new AddressBook(10);
dataReader = new Scanner(System.in);
boolean lContinue = true;
while (lContinue) {
switch (Character.toUpperCase(menu())) {
case '1': addBookEntry(); break;
case '2': deleteEntry(); break;
case '3': viewAllEntries(); break;
case '4': editEntry(); break;
case '5': searchEntryByName(); break;
case '6': searchEntryByRecord(); break;
case 'X':
lContinue = false;
break;
default:
System.out.println("\nInvalid Menu option");
}
}
System.out.println("\nEnd of program...");
}
public static char menu() {
char choice;
System.out.println("\nAddressBook Menu");
System.out.println("1. Add Entry");
System.out.println("2. Delete Entry");
System.out.println("3. View all Entries");
System.out.println("4. Update an Entry");
System.out.println("5. Search Entry By Name");
System.out.println("6. Search Entry By Record Number");
System.out.println("X. Exit Program");
System.out.print("\nSelect Menu Option: ");
choice = dataReader.nextLine().charAt(0);
return choice;
}
public static AddressBookEntry getEntryDetails(AddressBookEntry entry) {
if( entry == null ) {
entry = new AddressBookEntry();
}
System.out.print("\nName : "); entry.setName(dataReader.nextLine());
System.out.print("Address : "); entry.setAddress(dataReader.nextLine());
System.out.print("Phone No.: "); entry.setTelNo(dataReader.nextLine());
System.out.print("Email : "); entry.setEmailAdd(dataReader.nextLine());
return entry;
}
public static void addBookEntry() {
AddressBookEntry entry = getEntryDetails(null);
if( entry != null ) {
book.addAddressBookEntry(entry);
}
}
public static void editEntry() {
Scanner datainput = new Scanner(System.in);
System.out.println("Enter record number: ");
int recnumb = datainput.nextInt();
AddressBookEntry addent = new AddressBookEntry();
addent = book.findAddressBookEntryByRecordNo(recnumb);
// The following code (mark by "-")can be replace by getEntryDetails(AddressBookEntry entry)
// you can just pass "addent" to the method
// always try to reuse as much methods/codes as possible
getEntryDetails(AddressBookEntry)
- System.out.println("Name: " + addent.getName());
- System.out.println("Edit Name: ");
- String name = datainput.next();
- addent.setName(name);
- System.out.println("Edit Address: ");
- String address = datainput.next();
- addent.setAddress(address);
- System.out.println("Edit EmailAdd: ");
- String emailAdd = datainput.next();
- addent.setEmailAdd(emailAdd);
- System.out.println("Edit TelNo: ");
- String telNo = datainput.next();
- addent.setTelNo(telNo);
displayEntry(addent, recnumb);
// TODO: edit a single record entry
//System.out.println("\nUnder construction....");
}
public static void searchEntryByRecord() {
try {
Scanner datainput = new Scanner(System.in);
System.out.println("Enter record number: ");
int recnumb = datainput.nextInt();
AddressBookEntry addent = new AddressBookEntry();
addent = book.findAddressBookEntryByRecordNo(recnumb);
System.out.println("Name: " + addent.getName());
System.out.println("Address:" + addent.getAddress());
} catch (Exception NullPointerException) {
// TODO Auto-generated catch block
return;
}
// TODO: search an entry using its record no.
// display "record not found" if such record does not exist.
// Display all its entry.
// Hint: use the method "findAddressBookEntryByRecordNo()"
// from the AddressBook class
//System.out.println("\nUnder construction....");
}
public static void deleteEntry() {
Scanner datainput = new Scanner(System.in);
System.out.println("Enter record number to delete: ");
int recnumb = datainput.nextInt();
if (book.deleteAddressBookEntry(recnumb)) {
System.out.println("Deleted successfully.");
} else {
System.out.println("Record not found");
}
}
// TODO: delete an entry using its record no.
// display "record not found" if such record does not exist.
// Hint: use the method "deleteAddressBookEntry()"
// from the AddressBook class
// display a single record
public static void displayEntry(AddressBookEntry entry, int recNo) {
System.out.println("\nRecord No. " + recNo);
System.out.println("Name : " + entry.getName());
System.out.println("Address : " + entry.getAddress());
System.out.println("Phone No.: " + entry.getTelNo());
System.out.println("Email : " + entry.getEmailAdd());
}
// Search all entries containing name search criteria
public static void searchEntryByName() {
System.out.print("\nSearch[Name]: ");
// ensure no extraneous space and search criteria all in lowercase
String name = dataReader.nextLine().trim().toLowerCase();
// get a reference to the Addressbook list
AddressBookEntry[] list = book.getAllEntries();
for( int i = 0; i < list.length; i++ ) {
// compare search criteria with every entry
if(list[i]!=null && list[i].getName().toLowerCase().contains(name)) {
displayEntry(list[i],i+1);
}
}
System.out.println("No more records follow...");
}
public static void viewAllEntries() {
int validRecords = 0;
// get a reference to the Addressbook list
AddressBookEntry[] list = book.getAllEntries();
if( list.length == 0) {
System.out.println("\nList empty...");
}
for( int i = 0; i < list.length; i++ ) {
if( list[i] != null ) {
displayEntry(list[i],++validRecords);
}
}
System.out.println("No more entries to follow...");
}
}
答案 0 :(得分：2)
删除以＆＃34; - ＆＃34;开头的所有行并改用它：
getEntryDetails( addent );