Hello people. I am writing a program that helps users see if they can afoord monthly costs (tuition and rent).

here is the main method:

import java.io.*;
public class UserClass {

	/**
	 * @param args
	 */
	public static void main(String[] args) throws IOException{
		Finance fin=new Finance();
		fin.liveWithParents();
		fin.amountRent();
		fin.collegeTuition();
		fin.getMonthlyCost();
		fin.payMethod();
		fin.inputPayMethod();
		fin.getTotalCost();
		fin.outputCost();
	 	fin.outputFile();
	}

}

Here is the class it calls

import java.io.*;
import java.util.*;
public class Finance{
  private double rentExpenses, tuition, totalCost, totCost, rent;
  private double payInput;
  private boolean status, liveWithParent;
  private int pay;
  //totalCost=Final cost per month
  //totCost=cost of tuition and rent per month
  
  
//Living with parents?
  public void liveWithParents(){
    Scanner in=new Scanner(System.in);
    System.out.println("Are you living with your parents?");
    String parents= in.nextLine();
    if(parents.charAt(0)=='y' || parents.charAt(0)=='Y'){
      status=true;}
    else{
      status=false;}}
  
//If yes, do you pay them rent?, if yes how much? else -, else How much is your monthly rent anyway?
  public void amountRent(){
    double rent;
    char valid;
    String validIn;
    Scanner in=new Scanner(System.in);
    if(status){
      System.out.println("Do you need to pay them rent?");
      validIn=in.nextLine();
      valid= validIn.charAt(0);
      if(valid=='y' || valid=='Y'){
        System.out.println("How much is your rent?");
        rent=in.nextDouble();}}
    else{
     System.out.println("How much is your monthly rent?");
     rent=in.nextDouble();}}
  
//What is your college tuition, $/term
  public void collegeTuition(){
    System.out.println("What what is your college tuition in $ per term?");
    Scanner in=new Scanner(System.in);
    tuition= in.nextDouble();}
  
//Total cost of tuition and rent per month
  public void getMonthlyCost(){
    totCost= rentExpenses + tuition/3.75;
    System.out.println("Your rent expenses and college tuition are: $"+totCost+" per month");}
  
//Method of paying for expenses
  
  public void payMethod(){
    Scanner in=new Scanner(System.in);
    System.out.println("How will you pay for your expenses?"
                      + "\n 1 -Savings\n 2 -Loans\n 3 -Freelance Work");
    pay=in.nextInt();
    while(pay<=0 || pay>3){
      System.out.println("You need to enter a number coresponding to the three choiches.\n\t Try again:");
      System.out.println("How will you pay for your expenses?"
                      + "\n 1 -Savings\n 2 -Loans\n 3 -Freelance Work");
      pay=in.nextInt();}}
  
//Gets the amount of savings the user has and converts
//that value to a monthly value
public void inputPayMethod(){
  Scanner in=new Scanner(System.in);
  if(pay==1){
    System.out.println("What amount of savings do you have in total for the school year?");
    payInput=in.nextDouble();
    payInput=payInput/9;}
  else if(pay==2){
    System.out.println("What amount of loans did you acquire for this school year?");
    payInput=in.nextDouble();
    payInput=payInput/9;}
  else if(pay==3){
    System.out.println("How much revenue does your Freelane business get per month?");
    payInput=in.nextDouble();}}
  
//Calculates the total cost that the user needs
//for renting and tuition solely
public void getTotalCost(){
	totalCost=(payInput/3.75)-(rentExpenses + tuition/4.348);}

//Outputs the total cost
public void outputCost(){
  System.out.println("Your balance per month after expenses is: $"
                       +totalCost);
  if(totalCost<0){
           System.out.println("You still need $"+(-totalCost)+" per months");}
  if(totalCost>0){
           System.out.println("In other words you should be A-O-KAY");}  
              //Balance calculation for an entire school year
           System.out.println("For an entire school year, your expenses would be: "+ 
                                (totalCost*2));}

//Create a file with the information entered 
//and the information processed
public void outputFile() throws IOException{
	String payFileOutput=null;
	Scanner in=new Scanner(System.in);
	System.out.println("Enter the name of the file you wish to store this"+
                     "information in: ");
    String fileName= in.nextLine();
             
     PrintWriter file= new PrintWriter(fileName);
     file.println("Your rent expenses are                      :"+rentExpenses);
     file.println("Your college tuition in dollars per month is:"+tuition);
     file.println("                                             -----");
     file.println("Your rent expenses and college tuition are  :"+(rentExpenses + tuition));
     if(pay==1)
      payFileOutput="Savings";
     else if(pay==2)
      payFileOutput="Loans";
     else if(pay==3)
      payFileOutput="Freelance Work";
     else
      ;
     file.println("\n\nYou choose "+payFileOutput+"as your income source");
     file.println("Your balance per month after expenses is: $"+totalCost);
     if(totalCost<0){
      file.println("You still need $"+(-totalCost)+"per month");}
     if(totalCost>0){
      file.println("\n\n\nYour budget seems good");}
     file.close();
     System.exit(0);}
                                
                                
}

The problem is in line 17 of the main method. I get a "cannot find symbol, class Finance, fin.ouputFile();"

Thanks in advance.

-haxtor

It compiles on my system. Is there any chance that line 17 contains a typo in the version on your computer, but not the one you posted here?

I compiled, ran and saved the file, no problem. Try to see if you have permission to write the file or the file is not opened somewhere else.

Ok, I have a question. Could someone please explain me the logic in writting more versatile classes/code in general based on what you see I did here in my project.

The class seems too restrictive and aimed only at one application. Should all of the caluclations be stored in the main method, and the class would simply be processing all of this data?

as in:
Declaration- main method
Input - main method
Process- calls class
Output- calls class/main method

Could someone point me in the right direction in terms of good coding practices?

Thanks

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