
Concept explainers
Explanation of Solution
Program code:
coin.java
//import the required packages
import java.io.File;
import java.util.Arrays;
import java.util.Scanner;
//define a class coin
public class coin
{
//define the main
public static void main(String[] args) throws Exception
{
//create the object of File class
File fileName = new File("file.txt");
//create the object of Scanner class to refer the file
Scanner in = new Scanner(fileName);
//call the method coinFlip()
coinFlip(in);
}
//define a method coinFlip()
public static void coinFlip(Scanner in)
{
//iterate a while loop
while (in.hasNextLine())
{
//create the object of Scanner class
Scanner line = new Scanner(in.nextLine());
//declare required integer variables
int n = 0;
int nh = 0;
//iterate a while loop to get tokens
while (line.hasNext())
{
//make the tokens uppercase
String flip = line.next().toUpperCase();
//check the token is eqaul to H
if (flip.equals("H"))
{
//increment the value of nh by 1
nh++;
}
//increment the value of n by 1
n++;
}
//calculate ratio
double ratio = 100...

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Chapter 6 Solutions
MyProgrammingLab with Pearson eText -- Access Code Card -- for Building Java Programs
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