type

• int (whole numbers)
• double (numbers w decimals
• char (individual character)
• String
• boolean

example

• 1, 2, 3, 4, 5
• 1.0, 2.0
• 'a'
• "Hello"
• true, false

declaration + initialization

• int num = 17;
• double num = 25.0;
• char temp = 'c';
• String name = "Charlie";
• boolean isValid = true

modular arithmetic

• remainder
• mudlo takes the same arguments as division, but outputs only the remainder
  • ex: 9 mod 7 = 2 because 9/7 = 1 remainder 2
• modulo "wrap around" property
• consider a clock, where we are taking all values and modding them by 12

demo: hippie circle

• hippe hill in SF
• abstract notion of hippies sitting in a circle