enumeration2

Enum Op

java.lang.Object

java.lang.Enum<Op>

enumeration2.Op

All Implemented Interfaces:

java.io.Serializable, java.lang.Comparable<Op>

public enum Op
extends java.lang.Enum<Op>

Enum Constant Summary

Enum Constants

Enum Constant and Description
ADD
DIV
MUL
SUB

Method Summary

Modifier and Type	Method and Description
abstract int	eval(int x, int y)
java.lang.String	toString()
static Op	valueOf(java.lang.String name) Returns the enum constant of this type with the specified name.
static Op[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

compareTo, equals, getDeclaringClass, hashCode, name, ordinal, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

ADD

public static final Op ADD

SUB

public static final Op SUB

MUL

public static final Op MUL

DIV

public static final Op DIV

Method Detail

values

public static Op[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (Op c : Op.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static Op valueOf(java.lang.String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

java.lang.IllegalArgumentException - if this enum type has no constant with the specified name

java.lang.NullPointerException - if the argument is null

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Enum<Op>

eval

public abstract int eval(int x,
                         int y)