Mercurial > hg > Members > nobuyasu > scala

annotate chapter12/PhilosophicalTrait.scala @ 0:b316eec6fa7a draft default tip

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
add sample files
author Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
date Tue, 08 Jan 2013 16:41:46 +0900
parents
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
0
b316eec6fa7a add sample files
Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
1 trait Philosophical {
b316eec6fa7a add sample files
Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
2 def philosphize() {
b316eec6fa7a add sample files
Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
3 println("I consume memory, therefore I am!")
b316eec6fa7a add sample files
Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
4 }
b316eec6fa7a add sample files
Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
5 }
b316eec6fa7a add sample files
Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
6
b316eec6fa7a add sample files
Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
7 class Frog extends Philosphical {
b316eec6fa7a add sample files
Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
8 override def toString = "green"
b316eec6fa7a add sample files
Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
9 }
b316eec6fa7a add sample files
Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
10
b316eec6fa7a add sample files
Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
11 class Animal
b316eec6fa7a add sample files
Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
12 class Frog extends Animal with Philosophical {
b316eec6fa7a add sample files
Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
13 override def toString = "green"
b316eec6fa7a add sample files
Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
14 }
b316eec6fa7a add sample files
Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
15
b316eec6fa7a add sample files
Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
16 class Rational(n: Int, d: Int) extends Ordered[Rational] {
b316eec6fa7a add sample files
Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
17 def compare(that: Rational) =
b316eec6fa7a add sample files
Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
18 (this.number * that.demon) - (that.number * this.denom)
b316eec6fa7a add sample files
Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
19 }