I'm trying to store a bunch of variables through bufferedreader. I'm brand new to Java and frankly don't really understand completely what it even does, but I know that it accepts input from the user and am trying to get it to store a bunch of variables for me. Here is the code:
// import required packages for the program, importing all classes from packages to be on the safe side
import java.io.*;
import java.util.*;
import java.text.*;
public class Example
{
// need to use throws IO Exception because we are dealing with input and output, simple main method will not suffice
public static void main(String[] args) throws IOException
{
// declare department names as strings
String department1;
String department2;
String department3;
String department4;
// declare number of employees in each department as ints
int employees1;
int employees2;
int employees3;
int employees4;
// declare cost per employee in each department as doubles
double cpe1;
double cpe2;
double cpe3;
double cpe4;
//declare sales in each department as doubles
double sales1;
double sales2;
double sales3;
double sales4;
// declare in as a BufferedReader- used to gain input from the user
BufferedReader in;
in = new BufferedReader(new InputStreamReader(System.in));
//get input from the user to define department names
System.out.println("What is the name of department 1?");
department1 = in.readLine();
System.out.println("What is the name of department 2?");
department2 = in.readLine();
System.out.println("What is the name of department 3?");
department3 = in.readLine();
System.out.println("What is the name of department 4?");
department4 = in.readLine();
System.out.println("\n");
//get input fromm the user to define number of employees
System.out.println("How many employees are in department 1?");
employees1 = in.readLine();
System.out.println("How many employees are in department 2?");
employees2 = in.readLine();
System.out.println("How many employees are in department 3?");
employees3 = in.readLine();
System.out.println("How many employees are in department 4?");
employees4 = in.readLine();
System.out.printlin("\n");
// get input from user to define cost per employee in each department
System.out.println("What is the cost per employee in department 1?");
cpe1 = in.readLine();
System.out.println("What is the cost per employee in department 2?");
cpe2 = in.readLine();
System.out.println("What is the cost per employee in department 3?");
cpe3 = in.readLine();
System.out.println("What is the cost per employee in department 4?");
cpe4 = in.readLine();
// get input from user to define sales in each department
System.out.println("What are the sales in department 1?");
sales1 = in.readLine();
System.out.println("What are the sales in department 2?");
sales2 = in.readLine();
System.out.println("What are the sales in department 3?");
sales3 = in.readLine();
System.out.println("What are the sales in department 4?");
sales4 = in.readLine();
I keep getting an error saying that incompatible types are occurring when I try and run the program. Again, very new to this so a any simple explanations would be very much appreciated. Thank you!
The readLine
method returns String
.
This code will not even compile.
If you want to get an int
value, you need to call for example Integer.parseInt(ln)
,
where ln
is the line you read from the input. Analogically, if you want to get a double
value, you need to call for example Double.parseDouble(ln)
,
where ln
is the line you read from the input.