程序包 org.meteoinfo.data.mathparser

类 OperatorExpression

java.lang.Object

org.meteoinfo.data.mathparser.ExpressionBase

org.meteoinfo.data.mathparser.OperatorExpression

所有已实现的接口:

IExpression

public class OperatorExpression
extends ExpressionBase

作者:

yaqiang

构造器概要

构造器

构造器	说明
OperatorExpression(String operator)

方法概要

限定符和类型	方法	说明
Object	add(Object[] numbers)	Add of the specified numbers
Object	divide(Object[] numbers)	Divide of the specified numbers
Object	evaluate(Object[] numbers)	Math evaluate
int	getArgumentCount()	Get the number of arguments this expression uses
static boolean	isSymbol(char c)	Determines whether the specified char is a math symbol
static boolean	isSymbol(String s)	Determines whether the specified string is a math symbol
Object	multiple(Object[] numbers)	Multiple of the specified numbers
Object	power(Object[] numbers)	Power of the specified numbers
Object	subtract(Object[] numbers)	Subtract of the specified numbers
String	toString()

从类继承的方法 org.meteoinfo.data.mathparser.ExpressionBase

validate

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

构造器详细资料

OperatorExpression

public OperatorExpression(String operator)

方法详细资料

getArgumentCount

public int getArgumentCount()

从接口复制的说明: IExpression

Get the number of arguments this expression uses

指定者:

getArgumentCount 在接口中 IExpression

指定者:

getArgumentCount 在类中 ExpressionBase

返回:

The argument count

evaluate

public Object evaluate(Object[] numbers)

从接口复制的说明: IExpression

Math evaluate

参数:

numbers - The numbers to evaluate

返回:

The result of the evaluated numbers

add

public Object add(Object[] numbers)

Add of the specified numbers

参数:

numbers - The numbers

返回:

The result of the operation

subtract

public Object subtract(Object[] numbers)

Subtract of the specified numbers

参数:

numbers - The numbers

返回:

The result of the operation

multiple

public Object multiple(Object[] numbers)

Multiple of the specified numbers

参数:

numbers - The numbers

返回:

The result of the operation

divide

public Object divide(Object[] numbers)

Divide of the specified numbers

参数:

numbers - The numbers

返回:

The result of the operation

power

public Object power(Object[] numbers)

Power of the specified numbers

参数:

numbers - The numbers

返回:

The result of the operation

isSymbol

public static boolean isSymbol(String s)

Determines whether the specified string is a math symbol

参数:

s - The string to check

返回:

If the string is a math symbol

isSymbol

public static boolean isSymbol(char c)

Determines whether the specified char is a math symbol

参数:

c - The char to check

返回:

If the char is a math symbol

toString

public String toString()

覆盖:

toString 在类中 Object