Week 1

Flesch Readability Score is a measure of text readabilty
- Formula: 206.835 - 1.015 * (# words / # sentences) - 84.6 * (# syllables / # words)

Interned strings allow Java to treat 2 duplicate strings as the same object in memory.

String text = new String("Text shiz");  # New object
String text2 = "Hello world!";  # Refers to the same "interned" object.
String text3 = "Hello world";  # Refers to the same "interned" object.

Only use == to check equality of objects. Use str1.equals(str2) to compare values (eg in strings).
String methods in Java:
- length
- toCharArray
- charAt - return character at string position
- split
- indexOf
For each loop in Java:

for (char c : word.toCharArray())
{
    if (c == letter)
    {
        return true;
    }
}

Regular Expressions:
- a - match a.
- a+ - match one or more as.
- a* - match zero or more as.
- (ab)+ - match one or more abs.
- [abc] - match any character inside the set.
- [a-c] - match any character between a and c.
- [^a-c] - match anything that's not between a and c.
- a|c - match a or c.