tag:blogger.com,1999:blog-88002222609106503982024-03-08T15:56:12.590-08:00Chapter 14, 15bperry88http://www.blogger.com/profile/14435471619850605403noreply@blogger.comBlogger6125tag:blogger.com,1999:blog-8800222260910650398.post-57885432264851393572009-11-27T18:49:00.005-08:002009-11-30T13:11:56.837-08:00Chapter 15 Exercise 5import java.io.*;<br />import java.util.*;<br /><br />public class WordsInFile{<br /> public static void main(String[] args){<br /> Scanner stdIn = new Scanner(System.in);<br /> Scanner fileIn;<br /> String word;<br /> int numWords = 0;<br /><br /> try{<br /> System.out.print("Enter a filename: ");<br /> fileIn = new Scanner(new FileReader(stdIn.nextLine()));<br /> while(fileIn.hasNext()){<br /> word = fileIn.next();<br /> numWords++;<br /> }<br /> System.out.print("Number of words = " + numWords + "\n");<br /> fileIn.close();<br /> }<br /> catch(FileNotFoundException e){<br /> System.out.println("Invalid filename.");<br /> }<br /> catch(Exception e){<br /> System.out.println("Error reading from the file.");<br /> }<br /> }//end of main<br />}//end of WordsInFile classbperry88http://www.blogger.com/profile/14435471619850605403noreply@blogger.com0tag:blogger.com,1999:blog-8800222260910650398.post-2454600833242957742009-11-27T18:49:00.003-08:002009-11-30T13:09:55.648-08:00Chapter 15 Exercise 4import java.util.Scanner;<br />import java.io.*;<br /><br />public class TextWriter{<br /> public static void main(String[] args){<br /> Scanner stdIn = new Scanner(System.in);<br /> /*String[] churchill =<br /> {"Before Alamein we never had a victory.",<br /> "After Alamein we never had a defeat."};*/<br /> int year = 1942;<br /> PrintWriter fileOut;<br /><br /> try{<br /> System.out.print("Enter filename: ");<br /> //fileOut = new PrintWriter(stdIn.nextLine());<br /> fileOut = new PrintWriter(new FileWriter(stdIn.nextLine(), true));<br /> fileOut.print(year);<br /> fileOut.close();<br /> //for(String line : churchill){<br /> //fileOut.println(line);<br /><br /> //}<br /> }<br /> catch(FileNotFoundException e){<br /> System.out.println(e.getMessage());<br /> }<br /> catch(IOException e){<br /> }<br /> }//end of main<br />}//end of TextWriter classbperry88http://www.blogger.com/profile/14435471619850605403noreply@blogger.com0tag:blogger.com,1999:blog-8800222260910650398.post-57456087993645526422009-11-27T18:49:00.001-08:002009-11-30T13:09:55.653-08:00Chapter 15 Exercise 3import java.util.Scanner;<br />import java.io.*;<br /><br />public class TextWriter{<br /> public static void main(String[] args){<br /> Scanner stdIn = new Scanner(System.in);<br /> String[] churchill =<br /> {"Before Alamein we never had a victory.",<br /> "After Alamein we never had a defeat."};<br /> PrintWriter fileOut;<br /><br /> try{<br /> System.out.print("Enter filename: ");<br /> fileOut = new PrintWriter(stdIn.nextLine());<br /><br /> for(String line : churchill){<br /> fileOut.println(line);<br /> }<br /> fileOut.close();<br /> }<br /> catch(FileNotFoundException e){<br /> System.out.println(e.getMessage());<br /> }<br /> }//end of main<br />}//end of TextWriter classbperry88http://www.blogger.com/profile/14435471619850605403noreply@blogger.com0tag:blogger.com,1999:blog-8800222260910650398.post-73758108049487735062009-11-27T18:48:00.004-08:002009-11-30T13:09:55.661-08:00Chapter 14 Exercise 3import java.util.Scanner;<br /><br />public class Division{<br /> public static void main(String[] args){<br /> Scanner stdIn = new Scanner(System.in);<br /> int n, d, q;<br /><br /> try{<br /> System.out.print("Enter numerator: ");<br /> n = stdIn.nextInt();<br /> System.out.print("Enter divisor: ");<br /> d = stdIn.nextInt();<br /> q = n / d;<br /> System.out.println(q + "\n");<br /> }<br /><br /> catch(ArithmeticException e){<br /> System.out.println("Error, but keep going anyway,");<br /> }<br /> }//end of main<br />}//end of Division classbperry88http://www.blogger.com/profile/14435471619850605403noreply@blogger.com0tag:blogger.com,1999:blog-8800222260910650398.post-7540361665465743442009-11-27T18:48:00.003-08:002009-11-30T13:09:55.667-08:00Chapter 14 Exercise 2Entered index OK.<br />Peyton Manning<br />donebperry88http://www.blogger.com/profile/14435471619850605403noreply@blogger.com0tag:blogger.com,1999:blog-8800222260910650398.post-53280413652619950822009-11-27T18:48:00.001-08:002009-11-30T13:09:55.671-08:00Chapter 14 Exercise 1Entered index wasn't an integer<br />Can't access players[-1]<br />donebperry88http://www.blogger.com/profile/14435471619850605403noreply@blogger.com0