Module openj9.dtfj

Package com.ibm.j9ddr.tools.ddrinteractive

Class ExpressionEvaluator

java.lang.Object

com.ibm.j9ddr.tools.ddrinteractive.ExpressionEvaluator

public class ExpressionEvaluator
extends Object

Constructor Summary

Constructors

Constructor	Description
ExpressionEvaluator(String s)
ExpressionEvaluator(String[] as)
ExpressionEvaluator(ArrayList<String> al)

Method Summary

Modifier and Type	Method	Description
long	calculate(int defaultRadix)
static long	eval(String exp)	Evaluate expression with support for operator precedence and associativity
static long	eval(String exp, int defaultRadix)

Methods declared in class java.lang.Object

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

Constructor Details

ExpressionEvaluator

public ExpressionEvaluator(String s)

ExpressionEvaluator

public ExpressionEvaluator(String[] as)

ExpressionEvaluator

public ExpressionEvaluator(ArrayList<String> al)

Method Details

eval

public static long eval(String exp)
                 throws ExpressionEvaluatorException

Evaluate expression with support for operator precedence and associativity

Parameters:

exp - arithmetic expression.

Returns:

result or evaluation

Throws:

ExpressionEvaluatorException - if expression is in invalid format.

eval

public static long eval(String exp,
 int defaultRadix)
                 throws ExpressionEvaluatorException

Throws:

ExpressionEvaluatorException

calculate

public long calculate(int defaultRadix)
               throws ExpressionEvaluatorException

Throws:

ExpressionEvaluatorException