i am in desperate need of more help this week. My professor is sub par and makes no effort to clear things up.
The Problem: import a file and search for a specific piece of data that is requested by a user. The output must return something similar to: Sequential found ID number 77470, and its price is $49.55. or Sequential did not find ID number 77777.
I have no idea where to go from here, or even if this is correct....
public class MainClass
{
public static void main(String[] args)
{
Payroll acmePay = new Payroll();
Scanner myScanner = new Scanner(System.in);
int target;
acmePay.loadEmpNums();
System.out.println("Enter the product number you would like to search: ");
target = myScanner.nextInt();
System.out.print(acmePay.seqSearch(target));
myScanner.close();
}//END main
}//END class MainClass
Payroll Class:
public class Payroll
{
private int[] empNums = new int[1000];
private int empCount = 0;
Payroll(){} //Currently nothing done in constructor
public void loadEmpNums()
{
String name;
double salary;
empCount = 0; //Just to make sure!
try
{
String filename = "employees.dat";
Scanner infile = new Scanner (new FileInputStream(filename));
while (infile.hasNext())
{
//Read a complete record
empNums[empCount] = infile.nextInt();
name = infile.nextLine();
salary = infile.nextDouble();
//Increment the count of elements
++empCount;
}
infile.close();
}
catch (IOException ex)
{
//If file has problems, set the count to -1
empCount = -1;
ex.printStackTrace();
}
}//END loadEmpNums
public int seqSearch (int target)
{
int ind = 0;
int found = -1;
while (ind < empCount) {
if(target==empNums[ind])
{
found = ind;
ind = empCount;
}
else
{
++ind;
}
}
return found;
}
}//END class Payroll
