From 4c2d3db89c63c257bfb13783d21f27ec19597cbd Mon Sep 17 00:00:00 2001
From: Brandon Rodriguez <brodriguez8774@gmail.com>
Date: Wed, 27 Sep 2017 14:56:35 -0400
Subject: [PATCH] Implement basic search functionality
---
a0/src/com/CS3310/a0/Controller.java | 235 ++++++++++++++----
...uteTimeTest.java => ComputeTimeTests.java} | 2 +-
2 files changed, 183 insertions(+), 54 deletions(-)
rename a0/src/com/CS3310/a0/tests/{ComputeTimeTest.java => ComputeTimeTests.java} (99%)
diff --git a/a0/src/com/CS3310/a0/Controller.java b/a0/src/com/CS3310/a0/Controller.java
index 1dd381f..7a8f435 100644
--- a/a0/src/com/CS3310/a0/Controller.java
+++ b/a0/src/com/CS3310/a0/Controller.java
@@ -2,6 +2,7 @@ package com.CS3310.a0;
import java.util.Arrays;
+import java.util.Date;
import java.util.Random;
import java.util.Scanner;
@@ -12,14 +13,13 @@ import java.util.Scanner;
public class Controller {
//region Variables
- private int arrayIndex1;
- private int arrayIndex2;
private int arrayDim1;
private int arrayDim2;
- private String tempString;
- private char[][] charArray;
+ private char[][] unsortedArray;
+ private char[] sortedArray;
private Random random = new Random();
private Scanner reader = new Scanner(System.in);
+ private ComputeTime computeTime = new ComputeTime();
//endregion Variables
@@ -32,35 +32,38 @@ public class Controller {
*/
public Controller() {
boolean runProgram = true;
+ String userInputString;
while (arrayDim1 < 1 || arrayDim2 < 1) {
GetArrayDimensions();
}
- CreateArray();
+ RunCore();
PrintHelp();
while (runProgram) {
- tempString = GetUserInput();
- switch (tempString) {
- case "help":
- PrintHelp();
- break;
- case "dimensions":
- GetArrayDimensions();
- CreateArray();
- break;
- case "sort":
- Sort2DArray();
- break;
- case "print":
- Print2DArray();
- break;
- case "exit":
+ //userInputString = GetUserInput();
+// switch (tempString) {
+// case "help":
+// PrintHelp();
+// break;
+// case "dimensions":
+// GetArrayDimensions();
+// CreateArray();
+// break;
+// case "sort":
+// SortArray();
+// break;
+// case "print":
+// PrintUnsortedArray();
+// break;
+// case "exit":
runProgram = false;
- default:
- SearchName(tempString);
- }
+// break;
+// default:
+// SearchName(tempString);
+// break;
+// }
}
}
@@ -72,15 +75,38 @@ public class Controller {
//region Array Management Methods
+
+ /**
+ * Core functionality of program.
+ */
+ private void RunCore() {
+ String userInputString = GetUserInput("Enter a name to search: ");
+
+ CreateArray();
+ PrintUnsortedArray();
+ SearchNameUnsorted(userInputString);
+
+ SortArray();
+ PrintSortedArray();
+ SearchNameSorted(userInputString);
+ }
+
+
/**
* Creates initial 2D array.
* Values are filled in with random lowercase letters.
*/
private void CreateArray() {
+ int arrayIndex1;
+ int arrayIndex2;
int randomInt;
char[] tempChar;
+// Date startDate = new Date();
+// Date endDate;
+// long timeResult;
- charArray = new char[arrayDim1][arrayDim2];
+ unsortedArray = new char[arrayDim1][arrayDim2];
+ sortedArray = new char[arrayDim1 * arrayDim2];
// Populate array with random lowercase characters.
for (arrayIndex1 = 0; arrayIndex1 < arrayDim1; arrayIndex1++) {
@@ -88,38 +114,37 @@ public class Controller {
randomInt = random.nextInt(26);
randomInt = randomInt + 97; // Set to valid ascii codes.
tempChar = Character.toChars((char) randomInt);
- charArray[arrayIndex1][arrayIndex2] = tempChar[0];
+ unsortedArray[arrayIndex1][arrayIndex2] = tempChar[0];
}
}
+
+// // Get time lapse of process.
+// System.out.print("Array Creation Time: ");
+// endDate = new Date();
+// timeResult = computeTime.ComputeDateDifference(startDate, endDate);
+// computeTime.PrintTime(timeResult);
}
/**
* Sorts current array values alphabetically.
*/
- private void Sort2DArray() {
+ private void SortArray() {
+ int arrayIndex1;
+ int arrayIndex2;
int tempArrayIndex = 0;
- char[] tempArray = new char[arrayDim1 * arrayDim2];
+ sortedArray = new char[arrayDim1 * arrayDim2];
// Translate values into sortable 1d-Array.
for (arrayIndex1 = 0; arrayIndex1 < arrayDim1; arrayIndex1++) {
for (arrayIndex2 = 0; arrayIndex2 < arrayDim2; arrayIndex2++) {
- tempArray[tempArrayIndex] = charArray[arrayIndex1][arrayIndex2];
+ sortedArray[tempArrayIndex] = unsortedArray[arrayIndex1][arrayIndex2];
tempArrayIndex++;
}
}
- // Sort 1D-Array.
- Arrays.sort(tempArray);
-
- // Translate values back into 2d-Array
- tempArrayIndex = 0;
- for (arrayIndex1 = 0; arrayIndex1 < arrayDim1; arrayIndex1++) {
- for (arrayIndex2 = 0; arrayIndex2 < arrayDim2; arrayIndex2++) {
- charArray[arrayIndex1][arrayIndex2] = tempArray[tempArrayIndex];
- tempArrayIndex++;
- }
- }
+ // Sort 1d-Array.
+ Arrays.sort(sortedArray);
}
@@ -127,8 +152,8 @@ public class Controller {
* Iterate through each char in name and search for value in array.
* @param name Name to search through.
*/
- private void SearchName(String name) {
- int stringLength = name.length();;
+ private void SearchNameUnsorted(String name) {
+ int stringLength = name.length();
int index = 0;
char tempChar;
@@ -141,6 +166,26 @@ public class Controller {
}
+ /**
+ * Iterate through each char in name and search for value in array.
+ * @param name Name to search through.
+ */
+ private void SearchNameSorted(String name) {
+ int stringLength = name.length();
+ int index = 0;
+ int returnIndex;
+ char tempChar;
+
+ while (index < stringLength) {
+ tempChar = name.charAt(index);
+ returnIndex = BinarySearch(tempChar, 0, ((arrayDim1 * arrayDim2) - 1));
+ index++;
+ // Send found values or -1 if not found.
+ PrintArraySearch(tempChar, returnIndex);
+ }
+ }
+
+
/**
* Linearly search through array for given value.
* @param searchValue Char to search for.
@@ -148,15 +193,19 @@ public class Controller {
private void LinearSearch(char searchValue) {
int index1 = -1;
int index2 = -1;
- arrayIndex1 = 0;
+ int arrayIndex1 = 0;
+ int arrayIndex2;
// Search through Array until value found or end of array.
while (arrayIndex1 < arrayDim1) {
arrayIndex2 = 0;
while (arrayIndex2 < arrayDim2) {
- if (charArray[arrayIndex1][arrayIndex2] == searchValue) {
+ if (unsortedArray[arrayIndex1][arrayIndex2] == searchValue) {
+
+ // Save found values.
index1 = arrayIndex1;
index2 = arrayIndex2;
+ // Set vars to exit loops.
arrayIndex1 = arrayDim1;
arrayIndex2 = arrayDim2;
}
@@ -169,8 +218,46 @@ public class Controller {
}
- private void BinarySearch() {
+ /**
+ * Binary search through array for given value.
+ * @param searchValue Char to search for
+ */
+ private int BinarySearch(char searchValue, int firstIndex, int lastIndex) {
+
+ // Check if first index is after last index.
+ if (firstIndex >= lastIndex) {
+ // End of search.
+ if (sortedArray[firstIndex] == searchValue) {
+ // Match found.
+ return firstIndex;
+ } else {
+ // No match found.
+ return -1;
+ }
+
+ } else {
+
+ // More potential values.
+ int middleIndex = (firstIndex + lastIndex) / 2;
+ if (sortedArray[middleIndex] == searchValue) {
+
+ // Match found.
+ return middleIndex;
+ } else {
+
+ // No match found.
+ if (sortedArray[middleIndex] > searchValue) {
+ // Search value is earlier than current.
+ // Searching first half of values.
+ return BinarySearch(searchValue, firstIndex, middleIndex);
+ } else {
+ // Search value is later than current.
+ // Searching second half of values.
+ return BinarySearch(searchValue, (middleIndex + 1), lastIndex);
+ }
+ }
+ }
}
//endregion Array Management Methods
@@ -216,29 +303,30 @@ public class Controller {
* Sets dimensions of 2d-Array.
*/
private void GetArrayDimensions() {
- tempString = GetUserInput("Enter first array length: ");
+ String userInputString = GetUserInput("Enter first array length: ");
try {
- arrayDim1 = Integer.parseInt(tempString);
+ arrayDim1 = Integer.parseInt(userInputString);
} catch (Exception e) {
System.out.println("Invalid int value.");
}
- tempString = GetUserInput("Enter second array length: ");
+ userInputString = GetUserInput("Enter second array length: ");
try {
- arrayDim2 = Integer.parseInt(tempString);
+ arrayDim2 = Integer.parseInt(userInputString);
} catch (Exception e) {
System.out.println("Invalid int value.");
}
- System.out.println();
}
/**
- * Prints current array values.
+ * Prints current unsorted array values.
*/
- private void Print2DArray() {
+ private void PrintUnsortedArray() {
+ System.out.println("Unsorted Array:");
+
for (int index1 = 0; index1 < arrayDim1; index1++) {
for (int index2 = 0; index2 < arrayDim2; index2++) {
- System.out.print(charArray[index1][index2] + " ") ;
+ System.out.print(unsortedArray[index1][index2] + " ");
}
System.out.println();
}
@@ -246,11 +334,52 @@ public class Controller {
}
+ /**
+ * Prints current sorted array values.
+ */
+ private void PrintSortedArray() {
+ System.out.println("Sorted Array:");
+ int index = 0;
+ for (int index1 = 0; index1 < arrayDim1; index1++) {
+ for (int index2 = 0; index2 < arrayDim2; index2++) {
+ System.out.print(sortedArray[index] + " ");
+ index++;
+ }
+ System.out.println();
+ }
+ System.out.println();
+ }
+
+
+ /**
+ * Print out search values for unsorted array.
+ * @param searchValue Char to search for.
+ * @param index1 Row char was found in.
+ * @param index2 Col char was found in.
+ */
private void PrintArraySearch(char searchValue, int index1, int index2) {
System.out.println(searchValue + ":[" + index1 + "," + index2 + "]");
}
+
+ /**
+ * Print out search values for sorted array.
+ * @param searchValue Char to search for.
+ * @param index Index char was found in.
+ */
+ private void PrintArraySearch(char searchValue, int index) {
+ if (index > -1) {
+ // Item found.
+ int index1 = index / arrayDim1;
+ int index2 = index % arrayDim1;
+ System.out.println(searchValue + ":[" + index1 + "," + index2 + "]");
+ } else {
+ // Item not found.
+ System.out.println(searchValue + ":[" + index + "," + index + "]");
+ }
+ }
+
//endregion User Interface Methods
//endregion Methods
diff --git a/a0/src/com/CS3310/a0/tests/ComputeTimeTest.java b/a0/src/com/CS3310/a0/tests/ComputeTimeTests.java
similarity index 99%
rename from a0/src/com/CS3310/a0/tests/ComputeTimeTest.java
rename to a0/src/com/CS3310/a0/tests/ComputeTimeTests.java
index f3f18d5..76bb965 100644
--- a/a0/src/com/CS3310/a0/tests/ComputeTimeTest.java
+++ b/a0/src/com/CS3310/a0/tests/ComputeTimeTests.java
@@ -8,7 +8,7 @@ import org.junit.Test;
import com.CS3310.a0.ComputeTime;
-public class ComputeTimeTest {
+public class ComputeTimeTests {
//region Variables
--
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