As the newest systems analyst at AgriFeed Corporation, a company in the Midwest
ID: 657781 • Letter: A
Question
As the newest systems analyst at AgriFeed Corporation, a company in the Midwest that specializes in high technology feed grains for livestock, your boss calls you into the office. He explains that the R & D (Research and Development) Department needs a way to calculate simple statistical values for data gathered from testing on their mobile tablets while out on the field. Since the researchers use low-powered devices with 6-inch screens only capable of 480x360 pixels, they are not able to run most sophisticated statistics packages; however, they are capable of running simple Java applications. Your boss sends you to the end users to gather their general requirements. Here
Explanation / Answer
Program:
package Analysis;
public class AnalysisUI extends javax.swing.JFrame {
public AnalysisUI() {
initComponents();
}
@SuppressWarnings("unchecked")
// <editor-fold defaultstate="collapsed" desc="Generated Code">
private void initComponents() {
jLabel1 = new javax.swing.JLabel();
jLabel2 = new javax.swing.JLabel();
jLabel3 = new javax.swing.JLabel();
jScrollPane2 = new javax.swing.JScrollPane();
jList1 = new javax.swing.JList();
jButton1 = new javax.swing.JButton();
jTextField1 = new javax.swing.JTextField();
jButton2 = new javax.swing.JButton();
jTextField2 = new javax.swing.JTextField();
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
jLabel1.setText("Enter 10 Soil Moisture Values with space in between:");
jLabel2.setBackground(new java.awt.Color(204, 255, 204));
jLabel2.setFont(new java.awt.Font("Tahoma", 1, 18)); // NOI18N
jLabel2.setForeground(new java.awt.Color(255, 102, 102));
jLabel2.setText("STATISTICAL ANALYSIS PACKAGE");
jLabel3.setText("Possible tests:");
jList1.setModel(new javax.swing.AbstractListModel() {
String[] strings = { "Sum of SoilMoisture", "Maximum value", "Minimum value", "Mean value", "Standard deviation", " " };
public int getSize() { return strings.length; }
public Object getElementAt(int i) { return strings[i]; }
});
jScrollPane2.setViewportView(jList1);
jButton1.setBackground(new java.awt.Color(153, 255, 255));
jButton1.setForeground(new java.awt.Color(0, 0, 255));
jButton1.setText("Run Test");
jButton1.setName("RunTest"); // NOI18N
jButton1.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton1ActionPerformed(evt);
}
});
jButton2.setBackground(new java.awt.Color(153, 255, 255));
jButton2.setForeground(new java.awt.Color(0, 0, 255));
jButton2.setText("Clear");
jButton2.setName("Clear"); // NOI18N
jButton2.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton2ActionPerformed(evt);
}
});
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()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
.addGroup(javax.swing.GroupLayout.Alignment.LEADING, layout.createSequentialGroup()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jLabel3)
.addComponent(jLabel1))
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGap(52, 52, 52)
.addComponent(jScrollPane2, javax.swing.GroupLayout.PREFERRED_SIZE, 166, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGroup(layout.createSequentialGroup()
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addComponent(jTextField2, javax.swing.GroupLayout.PREFERRED_SIZE, 268, javax.swing.GroupLayout.PREFERRED_SIZE))))
.addGroup(javax.swing.GroupLayout.Alignment.LEADING, layout.createSequentialGroup()
.addGap(69, 69, 69)
.addComponent(jLabel2))
.addGroup(javax.swing.GroupLayout.Alignment.LEADING, layout.createSequentialGroup()
.addGap(12, 12, 12)
.addComponent(jButton2)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(jButton1)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(jTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, 379, javax.swing.GroupLayout.PREFERRED_SIZE)))
.addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addComponent(jLabel2)
.addGap(35, 35, 35)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jLabel1, javax.swing.GroupLayout.PREFERRED_SIZE, 32, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(jTextField2, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGap(67, 67, 67)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jScrollPane2, javax.swing.GroupLayout.PREFERRED_SIZE, 100, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(jLabel3))
.addGap(31, 31, 31)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jButton1)
.addComponent(jTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(jButton2))
.addContainerGap(36, Short.MAX_VALUE))
);
pack();
}// </editor-fold>
private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {
// Run test Button
int sum,max, min;
float avg;
double std;
String text;
int soilMoisture[]=new int[11];
String t=jTextField2.getText();
String s[]=t.split(" ");
for(int i=0;i<10;i++)
soilMoisture[i]= Integer.parseInt(s[i]);
switch (jList1.getSelectedIndex()) {
case 1: sum=getSum(soilMoisture);
text=(String) jList1.getSelectedValue()+": "+sum;
jTextField1.setText(text);
break;
case 2: min=getMin(soilMoisture);
text=(String) jList1.getSelectedValue()+": "+min;
jTextField1.setText(text);
break;
case 3: max=getMax(soilMoisture);
text=(String) jList1.getSelectedValue()+": "+max;
jTextField1.setText(text);
break;
case 4: sum=getSum(soilMoisture);
avg=sum/10;
text=(String) jList1.getSelectedValue()+": "+avg;
jTextField1.setText(text);
break;
case 5: std= getStd(soilMoisture);
text=(String) jList1.getSelectedValue()+": "+std;
jTextField1.setText(text);
break;
}
}
private int getSum(int soilMoisture[] )
{
int i;
//sum
int sum=0;
for(i=0;i<10;i++)
sum+= soilMoisture[i];
return sum;
}
private int getMin(int soilMoisture[] )
{
int min=soilMoisture[0];
for(int i=0;i<10;i++)
{
if(soilMoisture[i]<min)
min= soilMoisture[i];
}
return min;
}
private int getMax(int soilMoisture[] )
{
int max=soilMoisture[0];
for(int i=0;i<10;i++)
{
if(soilMoisture[i]<max)
max= soilMoisture[i];
}
return max;
}
private double getStd(int soilMoisture[] )
{
float avg=getSum(soilMoisture)/10;
int sum1=0;
for(int i=0;i<10;i++)
sum1+= Math.pow((soilMoisture[i]-avg),2);
sum1/= 9;
double std=Math.sqrt(sum1);
return std;
}
private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) {
// Clear button
jTextField1.setText(null);
jTextField2.setText(null);
}
/**
* @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(AnalysisUI.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (InstantiationException ex) {
java.util.logging.Logger.getLogger(AnalysisUI.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (IllegalAccessException ex) {
java.util.logging.Logger.getLogger(AnalysisUI.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (javax.swing.UnsupportedLookAndFeelException ex) {
java.util.logging.Logger.getLogger(AnalysisUI.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 AnalysisUI().setVisible(true);
}
});
}
// Variables declaration - do not modify
private javax.swing.JButton jButton1;
private javax.swing.JButton jButton2;
private javax.swing.JLabel jLabel1;
private javax.swing.JLabel jLabel2;
private javax.swing.JLabel jLabel3;
private javax.swing.JList jList1;
private javax.swing.JScrollPane jScrollPane2;
private javax.swing.JTextField jTextField1;
private javax.swing.JTextField jTextField2;
// End of variables declaration
}
Related Questions
drjack9650@gmail.com
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.