added git ignore

.gitignore

+
+# Editor backup files
+*~
+*.bak
+
+# Class Files #
+*.class
+
+# Package Files #
+*.jar
+*.war
+*.ear
+!lib/*.jar
+
+# NetBeans specific #
+nbproject/*
+!nbproject/project.properties
+!nbproject/project.xml
+build/
+nbbuild/
+dist/
+nbdist/
+nbactions.xml
+nb-configuration.xml
+
+# Server log
+log/*
+
+# Eclipse configuration files
+# NOTE: If you want to use the Git plugin for Eclipse, then 
+# do NOT exclude .classpath and .project!
+.settings/
+.metadata/
+.classpath
+.project
+
+# Default Eclipse output directory
+bin/
+
+# OS generated files
+.DS_Store
+.DS_Store?
+._*
+.Trashes
+.Icon?
+ehthumbs.db
+Thumbs.db
+
+#gitignore
+.gitignore

nbproject/private/private.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<project-private xmlns="http://www.netbeans.org/ns/project-private/1">
+    <editor-bookmarks xmlns="http://www.netbeans.org/ns/editor-bookmarks/2" lastBookmarkId="0"/>
+    <open-files xmlns="http://www.netbeans.org/ns/projectui-open-files/2">
+        <group>
+            <file>file:/Users/pxy/dm_task/src/dm_task/controller/GUIController.java</file>
+            <file>file:/Users/pxy/dm_task/src/dm_task/main/Dm_task.java</file>
+            <file>file:/Users/pxy/dm_task/src/dm_task/controller/SecondaryTaskController.java</file>
+        </group>
+    </open-files>
+</project-private>

src/dm_task/main/Dm_task.java

 package dm_task.main;
 
+import dm_task.view.DMView;
+
 /**
  *
  * @author Xiaoying Pu <xp002@bucknell.edu>
@@ -9,8 +11,33 @@ public class Dm_task {
     /**
      * @param args the command line arguments
      */
-    public static void main(String[] args) {
-        // TODO code application logic here
-    }
+    public static void main(String args[]) {
+        /* Set the Nimbus look and feel */
+        //<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) ">
+        /* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel.
+         * For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html
+         */
+        try {
+            for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
+                if ("Nimbus".equals(info.getName())) {
+                    javax.swing.UIManager.setLookAndFeel(info.getClassName());
+                    break;
+                }
+            }
+        } catch (ClassNotFoundException ex) {
+            java.util.logging.Logger.getLogger(DMView.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
+        } catch (InstantiationException ex) {
+            java.util.logging.Logger.getLogger(DMView.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
+        } catch (IllegalAccessException ex) {
+            java.util.logging.Logger.getLogger(DMView.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
+        } catch (javax.swing.UnsupportedLookAndFeelException ex) {
+            java.util.logging.Logger.getLogger(DMView.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
+        }
+        //</editor-fold>
 
+        /* Create and display the form */
+        java.awt.EventQueue.invokeLater(() -> {
+            new DMView().setVisible(true);
+        });
+    }
 }

src/dm_task/view/DMView.form

+<?xml version="1.0" encoding="UTF-8" ?>
+
+<Form version="1.3" maxVersion="1.9" type="org.netbeans.modules.form.forminfo.JFrameFormInfo">
+  <Properties>
+    <Property name="defaultCloseOperation" type="int" value="3"/>
+  </Properties>
+  <SyntheticProperties>
+    <SyntheticProperty name="formSizePolicy" type="int" value="1"/>
+    <SyntheticProperty name="generateCenter" type="boolean" value="false"/>
+  </SyntheticProperties>
+  <AuxValues>
+    <AuxValue name="FormSettings_autoResourcing" type="java.lang.Integer" value="0"/>
+    <AuxValue name="FormSettings_autoSetComponentName" type="java.lang.Boolean" value="false"/>
+    <AuxValue name="FormSettings_generateFQN" type="java.lang.Boolean" value="true"/>
+    <AuxValue name="FormSettings_generateMnemonicsCode" type="java.lang.Boolean" value="false"/>
+    <AuxValue name="FormSettings_i18nAutoMode" type="java.lang.Boolean" value="false"/>
+    <AuxValue name="FormSettings_layoutCodeTarget" type="java.lang.Integer" value="1"/>
+    <AuxValue name="FormSettings_listenerGenerationStyle" type="java.lang.Integer" value="0"/>
+    <AuxValue name="FormSettings_variablesLocal" type="java.lang.Boolean" value="false"/>
+    <AuxValue name="FormSettings_variablesModifier" type="java.lang.Integer" value="2"/>
+  </AuxValues>
+
+  <Layout>
+    <DimensionLayout dim="0">
+      <Group type="103" groupAlignment="0" attributes="0">
+          <Group type="102" alignment="0" attributes="0">
+              <EmptySpace max="-2" attributes="0"/>
+              <Component id="lblDigit" min="-2" max="-2" attributes="0"/>
+              <EmptySpace pref="378" max="32767" attributes="0"/>
+          </Group>
+      </Group>
+    </DimensionLayout>
+    <DimensionLayout dim="1">
+      <Group type="103" groupAlignment="0" attributes="0">
+          <Group type="102" alignment="0" attributes="0">
+              <EmptySpace max="-2" attributes="0"/>
+              <Component id="lblDigit" min="-2" max="-2" attributes="0"/>
+              <EmptySpace pref="278" max="32767" attributes="0"/>
+          </Group>
+      </Group>
+    </DimensionLayout>
+  </Layout>
+  <SubComponents>
+    <Component class="javax.swing.JLabel" name="lblDigit">
+      <Properties>
+        <Property name="text" type="java.lang.String" value="42"/>
+      </Properties>
+    </Component>
+  </SubComponents>
+</Form>

src/dm_task/view/DMView.java

+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package dm_task.view;
+
+/**
+ *
+ * @author Xiaoying Pu <xp002@bucknell.edu>
+ */
+public class DMView extends javax.swing.JFrame {
+
+    /**
+     * Creates new form DMView
+     */
+    public DMView() {
+        initComponents();
+    }
+
+    /**
+     * This method is called from within the constructor to initialize the form.
+     * WARNING: Do NOT modify this code. The content of this method is always
+     * regenerated by the Form Editor.
+     */
+    @SuppressWarnings("unchecked")
+    // <editor-fold defaultstate="collapsed" desc="Generated Code">//GEN-BEGIN:initComponents
+    private void initComponents() {
+
+        lblDigit = new javax.swing.JLabel();
+
+        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
+
+        lblDigit.setText("42");
+
+        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
+        getContentPane().setLayout(layout);
+        layout.setHorizontalGroup(
+            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
+            .addGroup(layout.createSequentialGroup()
+                .addContainerGap()
+                .addComponent(lblDigit)
+                .addContainerGap(378, Short.MAX_VALUE))
+        );
+        layout.setVerticalGroup(
+            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
+            .addGroup(layout.createSequentialGroup()
+                .addContainerGap()
+                .addComponent(lblDigit)
+                .addContainerGap(278, Short.MAX_VALUE))
+        );
+
+        pack();
+    }// </editor-fold>//GEN-END:initComponents
+
+    /**
+     * @param args the command line arguments
+     */
+    public static void main(String args[]) {
+        /* Set the Nimbus look and feel */
+        //<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) ">
+        /* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel.
+         * For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html
+         */
+        try {
+            for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
+                if ("Nimbus".equals(info.getName())) {
+                    javax.swing.UIManager.setLookAndFeel(info.getClassName());
+                    break;
+                }
+            }
+        } catch (ClassNotFoundException ex) {
+            java.util.logging.Logger.getLogger(DMView.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
+        } catch (InstantiationException ex) {
+            java.util.logging.Logger.getLogger(DMView.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
+        } catch (IllegalAccessException ex) {
+            java.util.logging.Logger.getLogger(DMView.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
+        } catch (javax.swing.UnsupportedLookAndFeelException ex) {
+            java.util.logging.Logger.getLogger(DMView.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
+        }
+        //</editor-fold>
+
+        /* Create and display the form */
+        java.awt.EventQueue.invokeLater(new Runnable() {
+            public void run() {
+                new DMView().setVisible(true);
+            }
+        });
+    }
+
+    // Variables declaration - do not modify//GEN-BEGIN:variables
+    private javax.swing.JLabel lblDigit;
+    // End of variables declaration//GEN-END:variables
+}