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Finished lab #16

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29b1727
Finished part 1 and 2
AnthonyJordan Mar 12, 2018
1a04317
Part 3 working
AnthonyJordan Mar 13, 2018
2819e42
Finished part 3 and refactored part 2
AnthonyJordan Mar 13, 2018
aeaef90
Added method to remove unused characters
AnthonyJordan Mar 13, 2018
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Finished part 1 and 2
  • Loading branch information
@AnthonyJordan
AnthonyJordan committed Mar 12, 2018
commit 29b17274e15d88f311657bf02c97a96800b2425f
101 changes: 101 additions & 0 deletions src/main/java/io/zipcoder/ParenChecker.java
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Original file line number Diff line number Diff line change
@@ -1,4 +1,105 @@
package io.zipcoder;

import com.sun.xml.internal.fastinfoset.util.CharArray;

import java.util.Stack;

public class ParenChecker {
private Stack<Character> stackOfChars = new Stack();

public boolean parenChecker(String inputString) {
char[] arrayAsChar = inputString.toCharArray();
for (int i = 0; i < arrayAsChar.length; i++) {
characterChecker(arrayAsChar[i]);
}

if (stackOfChars.isEmpty()) {
return true;
} else {
return false;
}
}

private void characterChecker(char inputChar) {
switch (inputChar) {
case '(':
stackOfChars.push(inputChar);
break;
case '{':
stackOfChars.push(inputChar);
break;
case '[':
stackOfChars.push(inputChar);
break;
case '<':
stackOfChars.push(inputChar);
break;
case ')':
if (!stackOfChars.empty()) {
if (stackOfChars.peek().equals('(')) {
stackOfChars.pop();
} else {
stackOfChars.push(inputChar);
}
} else {
stackOfChars.push(inputChar);
}
break;
case '}':
if (!stackOfChars.empty()) {
if (stackOfChars.peek().equals('{')) {
stackOfChars.pop();
} else {
stackOfChars.push(inputChar);
}
} else {
stackOfChars.push(inputChar);
}
break;
case ']':
if (!stackOfChars.empty()) {
if (stackOfChars.peek().equals('[')) {
stackOfChars.pop();
} else {
stackOfChars.push(inputChar);
}
} else {
stackOfChars.push(inputChar);
}
break;
case '>':
if (!stackOfChars.empty()) {
if (stackOfChars.peek().equals('<')) {
stackOfChars.pop();
} else {
stackOfChars.push(inputChar);
}
} else {
stackOfChars.push(inputChar);
}
break;
case '\"':
if (!stackOfChars.empty()) {
if (stackOfChars.peek().equals('\"')) {
stackOfChars.pop();
} else {
stackOfChars.push(inputChar);
}
} else {
stackOfChars.push(inputChar);
}
break;
case '\'':
if (!stackOfChars.empty()) {
if (stackOfChars.peek().equals('\'')) {
stackOfChars.pop();
} else {
stackOfChars.push(inputChar);
}
} else {
stackOfChars.push(inputChar);
}
break;
}
}
}
33 changes: 32 additions & 1 deletion src/test/java/io/zipcoder/ParenCheckerTest.java
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Original file line number Diff line number Diff line change
Expand Up @@ -3,6 +3,37 @@
import org.junit.Assert;
import org.junit.Test;

import javax.xml.ws.RequestWrapper;

public class ParenCheckerTest {

}
@Test
public void parenCheckerTest1(){
ParenChecker testChecker = new ParenChecker();
boolean actual = testChecker.parenChecker("()()<>\"\"[]{}\'\'");
Assert.assertTrue(actual);
}

@Test
public void parenCheckerTest2(){
ParenChecker testChecker = new ParenChecker();
boolean actual = testChecker.parenChecker("ufeuifbbifeiu><<()");
Assert.assertFalse(actual);
}

@Test
public void parenCheckerTest3(){
ParenChecker testChecker = new ParenChecker();
boolean actual = testChecker.parenChecker("\"(({}))\"");
Assert.assertTrue(actual);
}

@Test
public void parenCheckerTest4(){
ParenChecker testChecker = new ParenChecker();
boolean actual = testChecker.parenChecker("fsf(kfbf{}jnje)<>\"dsdjhsjdhj\"");
Assert.assertTrue(actual);
}

}