Error ' Cannot find symbol class UserAccount"

[Norm]

To get rid of the compiler error, delete the line with the error: line 7

[JosAH]

I'd say the OP should study the tutorials some more because s/he obviously doesn't know what s/he is doing; all tips are a waste of effort because the OP wouldn't understand them either ...

kind regards,

Jos

[r1b]

I'd say the OP should study the tutorials some more because s/he obviously doesn't know what s/he is doing; all tips are a waste of effort because the OP wouldn't understand them either ...

kind regards,

Jos

All tips are not a waste of effort. All tips are very welcome and greatly appreciated. Did I misread when I asked my question that this is a "New to Java " forum?

[r1b]

Hi

This is were I am now. It is compiling but it is throwing an error

import java.util.*;

class accountAR {


Account[] Accounts = new Account [10];


public int x;
Scanner input = new Scanner(System.in);




public void mainMenu(){
    int selection;

        System.out.print("Welcome to the Automated Teller Machine!\n");
        System.out.println("Select from the following menu options below:\n");
        System.out.println("========================");
        System.out.println("| [1]  Check Balance   |");
        System.out.println("| [2]  Withdrawal      |");
        System.out.println("| [3]  Deposit         |");
        System.out.println("| [4]  Exit            |");
        System.out.println("========================");
        System.out.print("Please select your option now: ");
        selection =input.nextInt();

switch (selection){
    case 1:
        viewBalance();
        break;
    case 2:
        withdrawFunds();
        break;
    case 3:
        depositFunds();
        break;
    case 4:
        System.out.println("Thank you for using ATM! \n Goodbye! \n");
}
}



public void setX (int c) {
	x = c;
	}

public void viewBalance() {
    int selection1;
    System.out.println("You have selected Balance.\n");
    System.out.println("\t-- Your Current Balance is:$ " + Accounts[x].getbalance());
    System.out.println("Return to main menu? \n [1] for YES \n");
    selection1 =input.nextInt();

switch (selection1){
    case 1:
        mainMenu();
        break;
}

}

//Method to withdraw money
public void withdrawFunds() {
    int withdrawSelection;

    System.out.println("Amount to withdraw: ");
    System.out.println("[1] - $20");
    System.out.println("[2] - $40");
    System.out.println("[3] - $50");
    System.out.println("[4] - $100");
    System.out.println("[5] - MAIN MENU");
    System.out.print("Please select your option now: ");
    withdrawSelection =input.nextInt();

switch (withdrawSelection){
    case 1:
        Accounts[x].withdraw(20);
        mainMenu();
        break;
    case 2:
        Accounts[x].withdraw(40);
        mainMenu();
        break;
    case 3:
        Accounts[x].withdraw(50);
        mainMenu();
        break;
    case 4:
        Accounts[x].withdraw(100);
        mainMenu();
        break;
    case 5:
        mainMenu();
        break;
}

}

// method for choosing how much to deposit
public void depositFunds(){
    int addSelection;

    System.out.println("Amount to deposit: ");
    System.out.println("[1] - $20");
    System.out.println("[2] - $40");
    System.out.println("[3] - $50");
    System.out.println("[4] - $100");
    System.out.println("[5] - MAIN MENU");
    System.out.print("Please select your option now: ");
    addSelection =input.nextInt();

    switch (addSelection){
    case 1:
        Accounts[x].deposit(20);
        mainMenu();
        break;
    case 2:
        Accounts[x].deposit(40);
        mainMenu();
        break;
    case 3:
        Accounts[x].deposit(50);
        mainMenu();
        break;
    case 4:
        Accounts[x].deposit(100);
        mainMenu();
        break;
    case 5:
        mainMenu();
        break;
}
}



public accountAR () {}

// Start main

public static void main (String [] args){

	accountAR a = new accountAR ();

Scanner input1 = new Scanner(System.in);
// Create 10 account objects

Account[] Account = new Account [10];


// loop to create 10 accounts with balance of 50

for (int p = 0; p<10;p++)
 {
Account [p] = new Account ();
Account [p].setId (p);
Account [p].setBalance(50);

 }

// Start the welcome message

int p;
System.out.println("Please enter your ID number\n");
p =input1.nextInt();
a.setX(p);



// If id is incorrect print message or start mainMenu
if (p > Account.length) {
	System.out.println ("Please re-enter your ID number\n");
}
		else {
			a.mainMenu(); }



 }
 }

the error is:

Exception in thread "main" java.lang.NullPointerException
at accountAR.depositFunds(accountAR.java:121)
at accountAR.mainMenu(accountAR.java:37)
at accountAR.main(accountAR.java:176)

[Norm]

There is a variable on line 121 that has a null value. Find which variable is null and then backtrack to see why that variable does not have a valid value. If you can not see which variable is null, add a println just before line 121 and print the values of all the variables used on 121.

[r1b]

Thanks for all your help today Norm.

[JosAH]

All tips are not a waste of effort. All tips are very welcome and greatly appreciated. Did I misread when I asked my question that this is a "New to Java " forum?

Nope, and my tip has value too: please read those tutorials some more and you'll understand what you're doing.

kind regards,

Jos