Help with errors in code

[XodoX]

Hi.

The following code snippets got some errors in there, Netbeans says. Can somebody tell me what, and why, so that I understand the errors, please?
So I'll know what I did wrong.


Database.Java

The first "private person" gives me an error. Why is that?

package Test;

public class Database {

    private person[] list;
    private int numberOfRecords;

    public Database() {
        
        throw new RuntimeException("Compiled Code");
    }

    public void add(String lastName, String firstName, int month, int day, int year) {
        //compiled code
        throw new RuntimeException("Compiled Code");
    }

    public int find(String firstName, String lastName, int month, int day, int year) {
        
        throw new RuntimeException("Compiled Code");
    }

    public void printList() {
     
        throw new RuntimeException("Compiled Code");
    }
}

Date.Java

gives me an error for exit(1); and return month==theOtherDate.month && day==theOtherDate.day && year==year; ??

ackage Test;

import java.language.*;

public class Date
{
    private int day;
    private int month;
    public int year;

    public Date(int m, int d, int y)
    {
        setDay(d);
        setMonth(y);
        setYear(y);
    }

    private int getDay()
    {
        return day;
    }
    public int getMonth()
    {
        return month;
    }
    public int getYear()
    {
        return month;
    }
    public void setDay(int d)
    {
        if( d>0 && d<=30) // assume there are 30 days in a month
        {
            day =d;
        }
        else
        {
            System.out.println("Improper user input. Day must be in [1,30]");
            exit(1);
        }
    }
    public void setMonth(int m)
    {
        if( m>=1 && m<=12)
        {
            month =m;
        }
        else
        {
            System.out.println("Improper user input. Month must be in [1,12]");
            System.exit(1);
        }
    }
    public void setYear(int y)
    {
        if( y>1900 && y<2050)
        {
            year =y;
        }
        else
        {
            System.out.println("Improper user input. Year must be in [1901,2049]");
            System.exit(1);
        }
    }

    public int equals(Date theOtherDate)
    {
        return month==theOtherDate.month && day==theOtherDate.day && year==year;
    }
    public String toString()
    {
        return month + "/" + day + "/" + year;
    }
}

Person.Java

This gives me an error for the first 3 private strings ( firstname, lastname, birthdate) Any ideas?

package assignment2;

class Person {

    private string firstName;
    private string lastName;
    private Date birthDate;

    public Person(String fN, String lN, int month, int day, int year) {
        //compiled code
        throw new RuntimeException("Compiled Code");
    }

    public boolean equals(Person theOtherPerson) {
        //compiled code
        throw new RuntimeException("Compiled Code");
    }

    public boolean equal(String fN, String lN, int month, int day, int year) {
        //compiled code
        throw new RuntimeException("Compiled Code");
    }

    public String toString() {
        //compiled code
        throw new RuntimeException("Compiled Code");
    }
}

I appreciate your help!

[Junky]

In future copy and paste the EXACT error message.

Java is case sensitive. You do not have a person class.

You do not have an exit method. Look closer at the rest of our code where you use the exit method.

The result of your return statement is a boolean. What is the return type of the method?

[XodoX]

In future copy and paste the EXACT error message.

Java is case sensitive. You do not have a person class.

You do not have an exit method. Look closer at the rest of our code where you use the exit method.

The result of your return statement is a boolean. What is the return type of the method?

What do you mean I don't have a person class? Where? You mean rename public class Database { line to public class person ?

About the return.. do you mean it's supposed to be int instead of boolean?

And yeah, sorry, but netbeans dosen't say much, so I figured pointing out the lines it ok.

[Junky]

What do you mean I don't have a person class?

As I said Java is case sensitive. You create an array of person (private person[] list) but do not have a person class.

About the return.. do you mean it's supposed to be int instead of boolean?

I don't know, it is your code, you make the decision but if you say your method will return an int then it must return an int and not a boolean.

[Junky]

By the way

year==year

is pointless. It will never be false.

[XodoX]

As I said Java is case sensitive. You create an array of person (private person[] list) but do not have a person class.


I don't know, it is your code, you make the decision but if you say your method will return an int then it must return an int and not a boolean.

Ok, so I got the class wrong. Then it's:

public class person {

private person[] list;
private int numberOfRecords;

public person() {

I understood what you meant, I was just making sure. You're right, it should be int. What about the other errors? So just add an exit method?


Thanks! You have been very helpful.

[Junky]

Oh lord help me!

No, the class name should be Database, that is fine. What is not fine is

private person[] list;

Why, because you do not have a class called person. Oh look you do have a class called Person though. Understand?

[XodoX]

Oh lord help me!

No, the class name should be Database, that is fine. What is not fine is

private person[] list;

Why, because you do not have a class called person. Oh look you do have a class called Person though. Understand?

No. I don't understand what there's to change.

[Junky]

Do you know what case sensitive is?

A lowercase letter is not the same as an uppercase letter. Lets hope that sinks in.

[XodoX]

If you don't want to help, then don't do it. You're being rude. But yes, I got it now.

[Junky]

I am helping or at least trying to help. It is not my fault if you are incapable of understanding. Perhaps you just want to be spoonfed or maybe just trolling.