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Aufgabe2_Kellerautomat fertig gestellt mit Exception

This commit is contained in:
schrom01 2022-04-10 17:46:10 +02:00
parent 4feff96d73
commit 2eed96c8f4
2 changed files with 12 additions and 13 deletions
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6
Test/Aufgabe2_KellerautomatTest.java
View File

@ -8,7 +8,9 @@ class Aufgabe2_KellerautomatTest {
void calculate() { void calculate() {
assertEquals(6664, Aufgabe2_Kellerautomat.calculate("34+62+89+43+***")); assertEquals(6664, Aufgabe2_Kellerautomat.calculate("34+62+89+43+***"));
assertEquals(58, Aufgabe2_Kellerautomat.calculate("31+78+987+1214++7++++++")); assertEquals(58, Aufgabe2_Kellerautomat.calculate("31+78+987+1214++7++++++"));
assertEquals(-1, Aufgabe2_Kellerautomat.calculate("34+*"));
assertEquals(-1, Aufgabe2_Kellerautomat.calculate("8+9+7*2*")); assertThrows(IllegalArgumentException.class,()->Aufgabe2_Kellerautomat.calculate("34+34+"));
assertThrows(IllegalArgumentException.class,()->Aufgabe2_Kellerautomat.calculate("34+*"));
assertThrows(IllegalArgumentException.class,()->Aufgabe2_Kellerautomat.calculate("8+9+7*2*"));
} }
} }

19
src/Aufgabe2_Kellerautomat.java
View File

@ -4,15 +4,19 @@ import java.util.Collections;
import java.util.List; import java.util.List;
public class Aufgabe2_Kellerautomat { public class Aufgabe2_Kellerautomat {
private static String[] words = {"ZZO", "ZZOZZOO", "ZZZOO", "ZZOO", "ZZOZZO", "ZOZ"}; private static String[] words = {"34+62+89+43+***", "31+78+987+1214++7++++++", "34+34+", "34+*", "8+9+7*2*"};
public static void main(String[] args) { public static void main(String[] args) {
for (String word : words) { for (String word : words) {
calculate(word); try {
calculate(word);
} catch (IllegalArgumentException e) {
e.printStackTrace();
}
} }
} }
public static int calculate(String word) { public static int calculate(String word) throws IllegalArgumentException {
List<Character> wordChars = new ArrayList<>(); List<Character> wordChars = new ArrayList<>();
for (char symbol : word.toCharArray()) { for (char symbol : word.toCharArray()) {
wordChars.add(symbol); wordChars.add(symbol);
@ -38,7 +42,6 @@ public class Aufgabe2_Kellerautomat {
state = 1; state = 1;
} else { } else {
dontAccept(word); dontAccept(word);
return -1;
} }
break; break;
case 1: case 1:
@ -49,7 +52,6 @@ public class Aufgabe2_Kellerautomat {
state = 2; state = 2;
} else { } else {
dontAccept(word); dontAccept(word);
return -1;
} }
break; break;
case 2: case 2:
@ -68,7 +70,6 @@ public class Aufgabe2_Kellerautomat {
state = 2; state = 2;
} else { } else {
dontAccept(word); dontAccept(word);
return -1;
} }
break; break;
case 3: case 3:
@ -78,7 +79,6 @@ public class Aufgabe2_Kellerautomat {
state = 4; state = 4;
} else { } else {
dontAccept(word); dontAccept(word);
return -1;
} }
break; break;
case 4: case 4:
@ -94,7 +94,6 @@ public class Aufgabe2_Kellerautomat {
state = 3; state = 3;
} else { } else {
dontAccept(word); dontAccept(word);
return -1;
} }
} else { } else {
if (stackSymbol > -1) { if (stackSymbol > -1) {
@ -102,7 +101,6 @@ public class Aufgabe2_Kellerautomat {
state = 5; state = 5;
} else { } else {
dontAccept(word); dontAccept(word);
return -1;
} }
} }
break; break;
@ -112,7 +110,6 @@ public class Aufgabe2_Kellerautomat {
state = 6; state = 6;
} else { } else {
dontAccept(word); dontAccept(word);
return -1;
} }
break; break;
case 6: case 6:
@ -126,7 +123,7 @@ public class Aufgabe2_Kellerautomat {
} }
private static void dontAccept(String word) { private static void dontAccept(String word) {
System.out.println("Word: " + word + "\nnot accepted"); throw new IllegalArgumentException("Word: " + word + "\nnot accepted");
} }
private static void accept(String word, int result) { private static void accept(String word, int result) {