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Java assignment
The program to do some sort of number entry validation. For example if someone enters letters I would like the program to print "invalid character entered, please just enter a number" here is what I have so far. any help would be appreciated .
import java.util.Scanner;public class Progject{ public static void main(String[]args) { double speed; double tailgate; double stoppingDistance; Scanner input=new Scanner(System.in); System.out.print("Enter your speed (in mph): "); speed=input.nextDouble(); System.out.print("Enter your tailgate distance (in feet): "); tailgate=input.nextDouble(); stoppingDistance = speed * (2.25 + speed / 21); if (stoppingDistance<tailgate) System.out.println("No problem!"); else if(stoppingDistance==tailgate)! System.out.println("Minor wreck!"); else if (stoppingDistance>tailgate) System.out.println("Major wreck!"); }}
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