Basic Assignments

• Literal integers are implicitly ints.
• Integer expressions always result in an int-sized result, never smaller.
• Floating-point numbers are implicitly doubles (64 bits).
• Narrowing a primitive truncates the high order bits.
• Compound assignments (e.g. +=), perform an automatic cast.
• A reference variable holds the bits that are used to refer to an object.
• Reference variables can refer to subclasses of the declared type but not to superclasses.