Question

*JAVA File Input/Output Homework* (4 parts)

Part 1 1) Open a TEXT editor program 2) Type in 50 words, one word per line, all words of the SAME catagory, max chars per word is 8. Example: 50 words of some names in the periodic table, or Flowers, or cars or.... 3) Save the file as myWordFile.txt Part 2 Write a program the reads the myWordFile.txt 1) Create an array of 'strings' called myWordArray 2) Write code that opens the file Wora at a time VVOLOdud LIILIATION TO ADIA antha nd the the file write it into th ordArray. Part 3 In the program, after all words are read from the file and written into the array... Find code to randomize the 50 words in the array, Partial hint below...

Answer 1

 import java.util.*; //import util library import java.io.*; //import io library public class solution{ //file name is solution.java public static void main(String[] args) throws Exception //main class { File file =new File("myWordFile.txt"); //read the text file containg 50 flowers name List<String> list = new ArrayList<String>(); //create a array list of string BufferedReader br=new BufferedReader(new FileReader(file));//using buffer reader to read file String st; while((st=br.readLine())!=null)//read all line using while loop { list.add(st); //add all string to list } String[] myWordArray = list.toArray(new String[list.size()]); //convert list to array of string String temp; Random r = new Random(); // Random number generator for (int i=0; i<50; i++) //run loop for 50 words in file { int randomPosition = r.nextInt(50); //generate random number upto 50 temp = myWordArray[i]; //swap the current index with random number index myWordArray[i] = myWordArray[randomPosition]; myWordArray[randomPosition] = temp; //swap with all index in array } for(String s : myWordArray)// run loop till all elements of array using for each loop { System.out.println(s);//print the elements of array } } }

Text file:myWordFile.txt Daisy Rose Iris Narcis Orchid Tulip Sunflower Cyclamen Carnation Poppy Pansy Violet Mimosa Daffodil Lily Hyacinth Anemone Gladiolus Forgetnot Bluebell Bougain Buttercup Cactus Camellia Chrysan Comb Confeder Crocus Dahlia Eglantine Flamboy Foxglove Geranium Gerbera Hibiscus Honey Hop Jasmine Lavender Lilac Lotus Magnolia Marigold Morning Orange Peony Primrose Snapdrag Snowdrop Tuberose 

import java.util.*; //import util library import java.io.*; //import io library public class solution{ //file name is solution.java public static void main(String[] args) throws Exception //main class File file =new File("myWordFile.txt"); //read the text file containg 50 flowers name List<String> list = new ArrayList<String>(); //create a array list of string BufferedReader br=new BufferedReader(new FileReader(file));//using buffer reader to read file String st; while((st=br.readLine()) !=null)//read all line using while loop list.add(st); //add all string to list String[] myWordArray = list.toArray(new String[list.size()]); //convert list to array of string String temp; Random r = new Random(); // Random number generator for (int i=0; i<50; i++) //run loop for 50 words in file int randomPosition = r.nextInt(50); //generate random number upto 50 temp = myWordArray[i]; // swap the current index with random number index myWordArray[i] = myWordArray[randomPosition); myWordArray[randomPosition] = temp; // swap with all index in array for(String s : myWordArray)// run loop till all elements of array using for each loop System.out.println(s);//print the elements of array

myWordFile - Notepad File Edit Format View Help Narcis Orchid Tulip Sunflower Cyclamen Carnation Poppy Pansy Violet Mimosa Daffodil Lily Hyacinth Anemone Gladiolus Forgetnot Bluebell Bougain Buttercup Cactus Camellia Chrysan Comb Confeder Crocus Dahlia Eglantine Flamboy Foxglove Geranium Gerbera Hibiscus Honey Hop Jasmine Lavender Lilac Lotus Magnolia Marigold Morning Orange Peony Primrose Snapdrag Snowdrop Tuberose

C. Command Prompt Honeysuckle Rose Buttercup Daffodil Primrose Bluebell Snapdragon Confederate rose Eglantine Bougainvillea Iris Foxglove Cactus flower Camellia Sunflower Orchid Dahlia Flamboyant Geranium Magnolia Crocus Hyacinth Tulip Morning-glory Anemone Lavender Chrysanthemum Gerbera Peony Hop Daisy Forget-me-not Pansy Lilac Tuberose Violet Gladiolus Mimosa Cockscomb Orange rose Narcissus Cyclamen Snowdrop Poppy Lily Jasmine Carnation Hibiscus Marigold Lotus

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