Count Words

Write a program to enter text string, then count the number of times each word occurs in that string and print to the screen in the format: word - number of words

We don't write code for you here. Make an effort and we will help(hint: a Map<String, Integer> will be very helpful).

This 's my code. but it 's not right.
I want output:
example:
Enter string: I am a student a student not good.
I: 1
am: 1
a: 2
Student: 2
not: 1
good: 1

Code:

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package lab7;


import java.io.*;

public class  Main{
  private static void linecount(String fName, BufferedReader in)
  throws IOException{
  long numChar = 0;
  long numLine=0;
  long numWords = 0;
  String line;
  do{
  line = in.readLine();
  if (line != null){
  numChar += line.length();
  numWords += wordcount(line);
  numLine++;
  }
  }while(line != null);
  System.out.println("File Name: " + fName);
  System.out.println("Number of characters: " + numChar);
  System.out.println("Number of words: " + numWords);
  System.out.println("Number of Lines: " + numLine);
  }
  private static void linecount(String fileName){
  BufferedReader in = null;
  try{
  FileReader fileReader = new FileReader(fileName);
  in = new BufferedReader(fileReader);
  linecount(fileName,in);
  }
  catch(IOException e){
  e.printStackTrace();
  }
  }
  private static long wordcount(String line){
  long numWords = 0;
  int index = 0;
  boolean prevWhiteSpace = true;
  while(index < line.length()){
  char c = line.charAt(index++);
  boolean currWhiteSpace = Character.isWhitespace(c);
  if(prevWhiteSpace && !currWhiteSpace){
  numWords++;
  }
  prevWhiteSpace = currWhiteSpace;
  }
  return numWords;
  }
  public static void main(String[] args){
    long numChar = 0;
  long numLine=0;
  String line;
  try{
  if (args.length == 0)
  {
  BufferedReader in =
  new BufferedReader(new InputStreamReader(System.in));
  line = in.readLine();
  numChar = line.length();
  if (numChar != 0){
  numLine=1;
  }
  System.out.println("Number of characters: " + numChar);
  System.out.println("Number of words: " + wordcount(line));
  System.out.println("Number of lines: " + numLine);
  }else{
  for(int i = 0; i < args.length; i++){
  linecount(args[i]);
  }
  }
  }
  catch(IOException e){
  e.printStackTrace();
  }
  }
}

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I don't see how your code is supposed to do anything to what you asked. This doesn't keep track of what words have been used at all...

Quote:

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count the number of times each word occurs in that string

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What kind of techniques and/or classes do you know how to use to be able to remember the counts?

Cross posted at Llist of words and frequency of each word

Quote:

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Originally Posted by jjjkkk

you 're stupid more than me. =))

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If you think a comment like that will encourage people to help you then clearly you are the stupid one!

Ignore++

Use as sunde887 suggested Map<String, Integer> .It s the best and easiest way to do it. Try it out.

Hi,

1) Counts the No of Words in a String
2) Place each of those words in a buffer (means any Array, List r some Storage)
3) Iterate through that Buffer Starting with the first word
4) Count the occurrence of the word

just think like a student solving a problem ......... u can easily build upon the logic