finding out if a character is present in a string

[laina222]

Hi all!
I'm currently trying to write a program that takes a character from a user and determines if that character is present within a string. For example, let's say theuser enters the letter 'r' and I want the system to determine how many times the character 'r' is present in the phrase "Chocolate is good for you.", so the system would return '1' since 'r' is only in that phrase once.
Your help is appreciated!
Laina

 

[Federal102]

Try this

public class test {
  public static void main(String[] args) {
    String input = "o";
    System.out.println("Enter a letter");
    InputStreamReader ir = new InputStreamReader(System.in);
    try{
      BufferedReader br = new BufferedReader(ir);
      input = br.readLine();
    }catch(Exception e){}
    String temp = "Chocolate is good for you";
    int x = 0;
    int ctr = 0;
    boolean repeat = true;
    while(repeat == true)
    {
      x = temp.indexOf(input, x + 1);
      if (x == -1)
        repeat = false;
      else
        ++ctr;
     }
     if(x == -1 && ctr == 0)
       System.out.println("The letter " + input + " was not found");
     else
       System.out.println("The letter " + input + " was found " + ctr + " times");
  }
}

 

[dannywild82]

im sure strstr does this for you!

use strstr to find the first occurance of a string within another, then use strstr on the rest of the string etc until strstr returns null!

the point of java is that you dont have to do all the C++ shit!