samples/apifest1/day1/parsingsolution/src/org/netbeans/apifest/boolcircuit/Circuit.java
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20 package org.netbeans.apifest.boolcircuit;
22 // BEGIN: apifest.day1.parsingsolution.Circuit
25 * First method parse must be called with valid logical expression on input.
26 * If it returns zero then it is possible to call method evaluate with array
27 * of input values as parameter. Method evaluate can be invoked many time with
28 * different input values.
29 * Method parse can be called anytime to change logical expression.
31 public class Circuit {
33 /** Parses logical expression
34 * @param string representation of logical expression
36 * Input values are represented by x and number starting from 1 eg.: x1
37 * AND, NOT, OR and brackets '(',')' can be used.
38 * Example of valid expression: x1 AND x2
39 * @return 0 when input expression is validated and parsed. Return nonzero value otherwise.
41 public int parse(String expression) {
45 /** Evaluate logical expression
46 * @param array of boolean input values. Size of array must correspond to number
47 * of variables used in expression
48 * If size of array is bigger then only first N values are used to evaluate expression.
49 * Remaining values are ignored.
50 * If size of array is smaller then IllegalArgumentException is thrown.
51 * If no expression is set by method parse then IllegalStateException is thrown.
53 public boolean evaluate(boolean [] x) {
59 // END: apifest.day1.parsingsolution.Circuit