Pull request for code challenge

Missing Number/.classpath

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+<?xml version="1.0" encoding="UTF-8"?>
+<classpath>
+	<classpathentry kind="src" path="src"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER"/>
+	<classpathentry kind="output" path="bin"/>
+</classpath>

Missing Number/.gitignore

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+/bin/

Missing Number/.project

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+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>Missing Number</name>
+	<comment></comment>
+	<projects>
+	</projects>
+	<buildSpec>
+		<buildCommand>
+			<name>org.eclipse.jdt.core.javabuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+	</buildSpec>
+	<natures>
+		<nature>org.eclipse.jdt.core.javanature</nature>
+	</natures>
+</projectDescription>

Missing Number/src/MainWindow.java

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+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+import java.io.File;
+import java.io.IOException;
+import java.nio.file.Files;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+
+import javax.swing.BoxLayout;
+import javax.swing.JButton;
+import javax.swing.JFileChooser;
+import javax.swing.JFrame;
+import javax.swing.JTextArea;
+
+/**
+ * Window that takes in a flat file and prints out the missing numbers in a sequence
+ * @author Bryson Hair
+ *
+ */
+public class MainWindow extends JFrame
+{
+	public MainWindow()
+	{
+		this.setTitle("Find Missing Sequence Number");
+		this.setSize(1000,1000);
+		this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+		this.getContentPane().setLayout(new BoxLayout(getContentPane(), BoxLayout.Y_AXIS));
+
+		addComponents();
+
+		this.setVisible(true);
+	}
+
+	private void addComponents()
+	{
+		JTextArea textArea = new JTextArea();
+		textArea.setRows(10);
+		textArea.setColumns(40);
+
+		JButton button = new JButton("Select File");
+		button.addActionListener(new ActionListener(){
+
+			@Override
+			public void actionPerformed(ActionEvent event) {
+				JFileChooser fc = new JFileChooser();
+				int returnVal = fc.showOpenDialog(button);
+				if(returnVal == JFileChooser.APPROVE_OPTION)
+				{
+					File file = fc.getSelectedFile();
+					List<String> lines = null;
+					try {
+						lines = Files.readAllLines(file.toPath());
+					} catch (IOException exception) {
+						exception.printStackTrace();
+					}
+
+					ArrayList<int []> intList = new ArrayList<int []>();
+					//Convert the list of strings into a list of sorted int arrays
+					for(int i = 0; i < lines.size(); i++)
+					{
+						String [] strArray = lines.get(i).split(",");
+						int [] intArray = new int [strArray.length];
+
+						for(int j = 0; j < strArray.length; j++)
+						{
+							intArray[j] = Integer.parseInt(strArray[j]);
+						}
+
+						Arrays.sort(intArray);
+						intList.add(intArray);
+					}
+
+					int [] missingNumbers = findMissingNumbers(intList);
+					String str = "";
+					for(int i = 0; i < missingNumbers.length; i++)
+					{
+						str += missingNumbers[i] + "\n";
+					}
+
+					textArea.setText(str);
+				}
+			}
+		});
+
+		this.add(button);
+		this.add(textArea);
+	}
+
+	private int [] findMissingNumbers(ArrayList<int []> intArrays)
+	{
+		int [] ints = new int [intArrays.size()];
+
+		//find and return an array of missing ints
+		for(int i = 0; i < intArrays.size(); i++)
+		{
+			int [] arr = intArrays.get(i);
+			int curValue = arr[0];
+			for(int j = 1; j < arr.length; j++)
+			{
+				if(arr[j] - 1 == curValue)
+				{
+					curValue = arr[j];
+				}
+				else
+				{
+					ints[i] = curValue + 1;
+				}
+			}
+		}
+
+		return ints;
+	}
+}

Missing Number/src/Runner.java

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+
+/**
+ * The runner class.
+ * @author Bryson Hair
+ *
+ */
+public class Runner
+{
+	public static void main(String [] args)
+	{
+		MainWindow window = new MainWindow();
+	}
+}