Java classifies values into groups called types. The following are some of the most basic types.
Values of type int are integers (positive or negative) up to approximately 2 billion in absolute value.
Values of type long are integers (positive and negative) up to approximately 9x1018 in absolute value.
Values of type double are real numbers represented approximately. You get roughly 15 digits of precision from these. Be careful. Numbers such as 0.1 are not stored exactly. There is a little bit of roundoff error.
You can write values of type double in decimal notation, as in 2.6345.
Values of type char are characters, such as the characters that you are reading now. You write a character in single quotes. For example, 'a' is the lower case 'a' character. (There are actually two different single-quote characters on your keyboard. Use the one that is on the same key as the double-quote character, not the other one that is up in a corner of your keyboard.)
Each line ends on a character that marks the end of the line. This newline character is written '\n'. (Do not try to write it '/n'. There are two different slash characters, pointing different directions.)
There are just two values of type boolean: true and false.
Question. How many values are there of type boolean? Answer[6]