/* The program asks how many names the user wants to enter Then it stores the name and ages in a text file Hence, it prints out the name and ages from the text file * */ import java.util.*; import java.io.*; public class NameAge { public static void main(String[] args)throws IOException { Scanner key = new Scanner (System.in); /* Ask the user to create a text file If file exists, it does nothing * */ System.out.println("Create a text file to write data to "); String file = key.nextLine(); // Creates the text file PrintWriter pw = new PrintWriter(file); /* Catches when the user enters a String instead of number * */ try { // Ask the user how many names will be input System.out.println("How many names will be enter? "); int size = key.nextInt(); // Writes data to the text file for(int i=0; i<size; i++) { System.out.print("Enter the name: "); String name = key.next(); pw.println(name); System.out.print("Enter the age: "); int age = key.nextInt(); pw.println(age); } // Close the file pw.close(); System.out.println("Enter name of file to be open"); String filename = key.next(); // Check to see if file exists File f = new File(filename); if(!f.exists()) { System.out.println("File Not Found!!"); System.exit(0); } // If file exists open file here Scanner output = new Scanner(f); /* Reads file until end of line Output the name and ages to the screen * */ while(output.hasNext()) { String people = output.next(); int years = output.nextInt(); System.out.println(people + " is " + years + " years old"); } output.close(); } catch(InputMismatchException e) { System.out.println("Please Enter a number"); } } }