This prompt scanner works outside of this program but when i integrate it, it doesn't work: All code work. just no together. Help would be much appreciated.
Scanner in = null;
Scanner key= new Scanner(System.in);
System.out.print("Input file name: ");
try
{
String filename = key.nextLine();
in = new Scanner(new File(filename));
}
catch (FileNotFoundException e)
{
System.out.println ("File not found!");
System.exit (0);
}
Code that works with set file.
import java.util.Scanner;
import java.io.*;
public class Stringy {
public static void main(String[] args) {
Scanner scan = new Scanner(System.in);
Scanner keyboard = new Scanner(System.in);
int action;
int word = 1;
int line = 0;
String search;
String nextWord;
String newWord;
String nextLine;
String replaceWord;
String replacement;
String fileString = "";
boolean contains = false;
try {
scan = new Scanner (new File("guns.dat"));
}
catch (FileNotFoundException e){
System.out.println("File not found!");
System.exit(0);
}
System.out.println("1.Searching for a word");
System.out.println("2.Find a substring inside of a word");
System.out.println("3.Search for a word and replacing it with another word.");
System.out.println("4.Counting the number of words in the file.");
System.out.println("5.Count the number of words that include the letter of the user's choosing.");
System.out.println("6.Count the number of lines in the file.");
System.out.println("7.Exit");
System.out.print("\n");
System.out.println("Enter the number of the method that you would like to perform: ");
action = keyboard.nextInt();
while(scan.hasNextLine()) {
fileString += scan.nextLine();
line++;
}
fileString = fileString.toLowerCase();
switch(action) {
case 1:
String searchWord = "";
System.out.println("Which word would you like to search for: ");
searchWord = keyboard.next();
if(findWord(fileString,searchWord)) {
System.out.print("The word is present: ");
}
else {
System.out.print("The word is not present: ");
}
break;
case 2:
String searchCharacter = "";
System.out.println("Which substring do you want: ");
searchCharacter = keyboard.next();
if(findCharacter(fileString,searchCharacter)) {
System.out.print("The substring is present: ");
}
else {
System.out.print("The subrting is not present: ");
}
break;
case 3:
System.out.println("Enter the word you would like to replace: ");
replaceWord = keyboard.next();
System.out.println("Enter the word you would like to replace it with: ");
replacement = keyboard.next();
fileString = fileString.replaceAll(replaceWord, replacement);
System.out.println(fileString);
break;
case 4:
boolean prevCharWasSpace = true;
for (int i = 2; i < fileString.length(); i++) {
if (fileString.charAt(i) == ' ') {
prevCharWasSpace = true;
}
else{
if(prevCharWasSpace) word++;
prevCharWasSpace = false;
}
}
System.out.println("There are " +word +" words in the file.");
break;
case 5:
System.out.println("Enter the character that will be counted ");
String character = keyboard.next();
char charCharacter = character.charAt(0);
int counter = 0;
for(int a = 0; a < fileString.length(); a++ ) {
if(fileString.charAt(a) == charCharacter) {
counter++;
}
}
System.out.println("That character is found " +counter +" times.");
break;
case 6:
System.out.println("There are " +line +" lines in the file.");
break;
default:
System.out.println("Not one of the options. Buh-Bye");
}
}
public static boolean findWord(String fileString, String searchWord) {
return fileString.contains(searchWord);
}
public static boolean findCharacter(String fileString, String searchCharacter) {
return fileString.contains(searchCharacter);
}
}
