whats the problem here and how to fix it ?

import java.io.PrintWriter;
import java.io.;
import java.util.;
import java.io.FileReader;
public class practice22
{

public static void main(String[] args) throws FileNotFoundException
{

Scanner infile =new Scanner(new FileReader("indata.txt"));
PrintWriter outfile = new PrintWriter("outData.dat");

double length;
double width;
double radius;

String FirstName;
String LastName;
int age;

double SavingaccountBalance;
double intrestRate;
final double pi = 3.1416;
String ch;

System.out.println(" ENTER LENGTH :");
length = infile.nextDouble();
System.out.println(" ENTER WIDTH :");
width = infile.nextDouble();
System.out.println(" ENTER RADIUS :");

radius = infile.nextDouble();
FirstName = infile.next();
LastName = infile.next();
age = infile.nextInt();

System.out.println("First name :" + FirstName);
System.out.println("Last name :" + LastName);
System.out.println(" age: " + age);

SavingaccountBalance = infile.nextDouble();
intrestRate = infile.nextDouble();
ch = infile.next();

System.out.println(" saving account balance : " + SavingaccountBalance);
System.out.println(" intrest rate :" + intrestRate);
System.out.println(" ch= " + ch);


infile.close();
outfile.close();
 

}
}