import javax.swing.*;

class CountLetter
{
    public static void main(String[] args)
    {
        String myStr,singleChar;
        char ch; 
        
        myStr = JOptionPane.showInputDialog(null,"Enter a sentence");
        singleChar = JOptionPane.showInputDialog(null,"Enter a character");
        
        ch = singleChar.charAt(0);
        
        int len,i,count;
        
        count = 0;
        len = myStr.length();
        
        for (i=0;i<len;i++)
            if (ch == myStr.charAt(i)) count++;
        
        JOptionPane.showMessageDialog(null,"There are " + count + "occurrences of " + ch 
                                      + "\n" + " in the sentence " + " \n" + myStr);
        
       System.exit(0);

    }
}