Language Fundamental

  • The escape sequences are as follows: '\b' (backspace), '\f' (formfeed), '\n' (newline), '\r' (carriage return), '\t' (horizontal tab), '\\' (backslash), '\"' (double quote), '\'' (single quote). Yes, you must memorize the escape sequences! Just remember "big farms needred tractors". 
  • Variables declared inside of a block or method are called local variables; they are not automatically initialized. The compiler will generate an error as a result of the attempt to access the local variables before a value has been assigned.  

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