wordfreq

gistfile1.txt

package PhotoEditor;

import java.io.File;
import java.io.FileNotFoundException;
import java.util.HashMap;
import java.util.Scanner;

public class HashMapFun {
	public static void main(String[] args) {
		HashMap <String, Integer> wordFrequency = new HashMap <String, Integer> ();
		String bookContent = getFile("book");
		String[] words = bookContent.split(" ");
		// Go to every word in the list
		for (String word : words) {
			// If I've already added this word to the frequency map
			if (wordFrequency.containsKey(word)) {
				int number = wordFrequency.get(word);
				number = number + 1;
				wordFrequency.put(word, number);
			}
			// I haven't yet seen the word
			else {
				wordFrequency.put(word, 1);
			}
		}
		
		
	}
	
	public static String getFile(String path) {
		// Make a File object to represent this file at the path
		File f = new File(path);
		
		// Do the code in the try, and if it fails do the catch code
		try {
			// Make a scanner to read the file
			Scanner fileScanner = new Scanner(f);
			// Make a StringBuilder to create the file content
			StringBuilder content = new StringBuilder();
			// While the file scanner still has a line of input
			while (fileScanner.hasNextLine()) {
				// Append the next line of file input
				content.append(fileScanner.nextLine());
				// Append a newline character.
				content.append("\n");
			}
			// Return whatever is in the StringBuilder
			return content.toString();
		} 
		// Catch any error that may occur in the above try statement
		catch (FileNotFoundException e) {
			System.out.println("Didn't find the file.");
		}
		return ""; 	// If all else fails, return an empty string.
	}
}