Number Types

• int: integers, no fractional part
  1, -4, 0
• double: floating-point numbers (double precision)
  0.5, -3.11111, 4.3E24, 1E-14
• A numeric computation overflows if the result falls outside the range for the number type
  int n = 1000000;
  System.out.println(n * n); // prints -727379968
• Java: 8 primitive types, including four integer types and two floating point types