Converting strings

Converting strings

:

   public String toLowerCase()
   public String toUpperCase()

Creates a new version of a string that is either all lower case or all upper case. Does not change the original string.

the earlier version only by the added two lines in the following.

  private int substringCounter( String text, String word)
  {
        int count = 0;
        int pos;
        
        text = text.toLowerCase();
        word = word.toLowerCase();
        
        pos = text.indexOf(word,0);
        
        while ( pos >= 0 )
        {
            count++;
            pos = text.indexOf(word,pos+word.length());
        
        }
        return count;
  }

Note that the assignment statements to text and word are required. String methods do not manipulate the given string. They make a brand new one.

Converting strings