Monday, May 18th

IT'S DONE ! Level 2 of CodingBat is officially completed!

After a dreadful month of suffering with endless problems, I have completed String 2. I left class on the verge of crying because I had half a problem to fix until I was done, but I had to wait to come home before completing it. It took a while, the last problem, but was definitely worth it once I saw the green check with the star.

Here is my last problem:
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Given a string and a non-empty word string, return a version of the original String where all chars have been replaced by pluses ("+"), except for appearances of the word string which are preserved unchanged. 


public String plusOut(String str, String word) {

String abc = new String("");
// create a new string.

int i= 0;

while (i<str.length())
// as long as we don't exceed the string length,
{
 if (str.substring(i).startsWith(word))
 {
  abc+=word;
  i+=word.length();
// when we see the word, we want to add the word to our new string abc. then, make i skip to 
// the next letter after the end of the word.
 }

 else
 {
  abc+="+";
  i++;
// if we're not looking at the word, then simply replace every letter with a +, and increment i by 
// one so that it looks at the next letter.
 }

}
   return abc;
// return our modified string.

}

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It was very enjoyable to work on Level 2. Although at times the problems frustrated me, it made me learn a lot. I constantly learned new methods (as you saw above), and new ways of thinking. New logic. I am starting to develop the sense of thinking in code.

From here, I do not know where I will go. I will either work on some level 2 things, like warmup 2, or Logic 2, or even maybe AP CS 1 if Mr. Daly thinks that I have a high enough level to work on those. I don't think I will start Level 3, because it is more complicated and I won't have access to Mr. Daly's help over the summer. It all depends on what I decide with Mr. Daly next class.

Either way, I am presenting in 2 weeks time.

I'm very excited !