! ( ! (2 > 1) || ! (2 < 1) || true || (-3 == -3.0) )

! ((2 > 1) && (2 < 1))

"true".equals("true")

’a’ == ’a’

"true".equalsIgnoreCase("TRUE")

(2 > 1) || (2 < 1)

"true" == "true"

"true".equals(true)

new String("true").equals(new String("true"))

new String("true") == new String("true")

An instance variable of type Long defaults to 0

An instance variable of type int does not have default value

An instance variable of type Long defaults to null

An instance variable of type int defaults to 0