Class BinaryNode<E>

java.lang.Object

BinaryNode<E>

public class BinaryNode<E>
extends java.lang.Object

Basic node for a binary tree with element, left and right fields. This class has special fields for use with ExprEvaluator. There are special constructors for different situations. The fields are:

• element - The data in the node. Required.
• type - The type of the element. See list below. Required<./li>
• subType - the ASCII value of the char for operators and variables, the function number for functions, unused for doubles constants.
• numParams - The number of parameters for a function. Unused otherwise.
• value - The value of a double or constant. Unused otherwise.
• left - The pointer to the left subtree.
• right - The pointer to the right subtree.

The types are
DOUBLE: a double (a number)
VARIABLE: a variable
CONSTANT: a constant
OPERATOR: an operator
FUNCTION: a function value: The value of the element

Modified 11/14/04, 4/4/06, 3/10/08, 3/21/08,

Field Summary

Fields

Modifier and Type	Field and Description
static int	CONSTANT The type is a constant
static int	DOUBLE The type is a double
static int	FUNCTION The type is a function
static int	OPERATOR The type is an operator
static int	VARIABLE The type is a variable

Method Summary

Modifier and Type	Method and Description
java.lang.String	toString() Returns a String with the data as the value of the binary node

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

DOUBLE

public static final int DOUBLE

The type is a double

See Also:

Constant Field Values

VARIABLE

public static final int VARIABLE

The type is a variable

See Also:

Constant Field Values

CONSTANT

public static final int CONSTANT

The type is a constant

See Also:

Constant Field Values

OPERATOR

public static final int OPERATOR

The type is an operator

See Also:

Constant Field Values

FUNCTION

public static final int FUNCTION

The type is a function

See Also:

Constant Field Values

Method Detail

toString

public java.lang.String toString()

Returns a String with the data as the value of the binary node

Overrides:

toString in class java.lang.Object

Returns:

a String representing the binaryNode - namely the element