Write a method frequentFlier that accepts a Scanner for an input file of ticket

Question

Write a method frequentFlier that accepts a Scanner for an input file of ticket type / mileage pairs and reports how many frequent-flier miles the person earned. • 1 frequent flyer mile is earned for each mile traveled in coach. • 2 frequent flyer miles are earned for each mile traveled in first class. • 0 frequent flyer miles are earned on a discounted flight. For example, given the input below, your method should return 15600 (2*5000 + 1500 + 100 + 2*2000). firstclass 5000 coach 1500 coach 100 firstclass 2000 discount 300

Explanation / Answer

import java.util.*;

import java.lang.*;

import java.io.*;

class Test

{

public static void main(String[] args) throws java.lang.Exception

{

Scanner input = new Scanner(new File("Input.txt"));

frequentFlier(input);

}

public static void frequentFlier(Scanner input){

Scanner lines = new Scanner(input.nextLine());

//Scanner lines = new Scanner(System.in);

int miles=0;int mileage;

while(lines.hasNext()) {

String line = lines.nextLine();

String[] arrSplit = line.split(" ");

mileage = Integer.parseInt(arrSplit[1]);

if(arrSplit[0].equalsIgnoreCase("coach"))

miles += mileage;

else if(arrSplit[0].equalsIgnoreCase("firstclass"))

miles += 2*mileage;

else

miles += 0;

}

System.out.println("Frequent flier miles: "+ miles);

}

}

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