I have these two arrays that I want to use to display the high and low temps and the average of all the temps combined. For the integers, it is supposed to display the lowest temp and then the highest temp. So for each two integers in the array is to go with one year in the other array. How I would make it to where only two integers are displayed depending on the year selected? The yearTemp is used in a ComboBox and the 2 integers are to be displayed in un-editable textboxes.
/*
* Program Name: Temperature Average
* Author: Cody Tapp
* Date: July 12, 2018
* Class: CIT 149 Java I
* Description: This program will use temperature data from the past 65 years and use that info for the user to lookup
* high and low temperatures for the month of January and the year selected. Displayed will be the average temperature for that month from
* all the years combined.
*/
// Import gui components
import javax.swing.*;
import java.util.*;
import java.util.Comparator;
import javax.swing.ComboBoxModel;
import java.awt.*;
import java.awt.event.*;
public class TapCoGuiTempAverage extends JFrame
{ // Begin class
public static void main(String[] args)
{ // Begin main
new TapCoGuiTempAverage(); // Calls the TapCoGuiTempAverage method and executes.
} // End main
String[] yearTemp = new String[]
{ "1951", "1952", "1953", "1954",
"1955", "1956", "1957", "1958",
"1959", "1960", "1961", "1962",
"1963", "1964", "1965", "1966",
"1967", "1968", "1969", "1970",
"1971", "1972", "1973", "1974",
"1975", "1976", "1977", "1978",
"1979", "1980", "1981", "1982",
"1983", "1984", "1985", "1987",
"1988", "1989", "1990", "1991",
"1992", "1993", "1994", "1995",
"1996", "1997", "1998", "1999",
"2000", "2001", "2002", "2003",
"2004", "2005", "2006", "2007",
"2008", "2009", "2010", "2011",
"2012", "2013", "2014", "2015",
"2016"};
int[] highLowTemp = new int[]
{ 7, 68, 9, 77, 20, 65, -7, 63,
-3, 66, 8, 62, -2, 63, 3, 58,
-5, 69, 8, 70, -12, 58, -12, 71,
-28, 67, -6, 66, -14, 68, -15, 62,
10, 73, 0, 64, -12, 60, -14, 66,
7, 67, -8, 71, 0, 62, 13, 69,
6, 70, -3, 57, -13, 41, -6, 60,
0, 60, 15, 56, -2, 62, -19, 62,
11, 57, -2, 61, -16, 63, -7, 62,
-2, 61, 18, 67, 13, 68, 14, 62,
4, 58, 12, 67, -32, 54, 3, 69,
7, 68, -2, 68, 6, 66, 4, 73,
5, 69, 3, 61, 11, 72, -8, 57,
1, 70, 6, 69, 15, 65, 7, 67,
1, 70, 0, 60, 2, 57, 3, 62,
15, 64, 14, 68, -4, 57, 2, 59,
5, 64};
// Objects declared that will be used in GUI
private JButton buttonCalculate;
private JButton buttonExit;
private JComboBox<String> comboYearSelector = new JComboBox<>(yearTemp);
private JTextField textHighTemp;
private JTextField textLowTemp;
private JTextField textAverageHighTemp;
private JTextField textAverageLowTemp;
public TapCoGuiTempAverage() // Operate the GUI and processes all calculations based on selection in combobox
/** REMOVE VOID TYPE TO COMPILE. **/
{ // Begin method
// Sets window size, location, text, and close operation.
this.setSize(800, 400);
this.setLocation(400, 400);
this.setTitle("Daily Temperature");
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
/**** REMOVE COMMENT, ONLY HERE TO COMPILE UNTIL INNER ACTIONLISTENER CLASS IS WRITTEN.****/
ButtonListener listen = new ButtonListener();
JPanel tempPanel = new JPanel(); // Creates panel so objects can be added to the window.
JLabel labelYear = new JLabel("Select the year");
tempPanel.add(labelYear);
tempPanel.setLayout(new GridLayout(15,6,0,5));
String[] yearSelection = yearTemp; // ComboBox has a string array that will be used to display options in the dropdown menu
comboYearSelector.addActionListener(listen); // ComboBox is added as an action listener and executes based on its selection.
tempPanel.add(comboYearSelector); // ComboBox button is added to the panel.
JLabel labelHighTemp = new JLabel("High Temp:");
tempPanel.add(labelHighTemp);
textHighTemp = new JTextField(5);
textHighTemp.setEditable(false);
tempPanel.add(textHighTemp);
JLabel labelLowTemp = new JLabel("Low Temp:");
tempPanel.add(labelLowTemp);
textLowTemp = new JTextField (5);
textLowTemp = new JTextField(6);
textLowTemp.setEditable(false);
tempPanel.add(textLowTemp);
JLabel labelAverageHighTemp = new JLabel("Average High:");
tempPanel.add(labelAverageHighTemp);
textAverageHighTemp = new JTextField(5);
textAverageHighTemp.setEditable(false);
tempPanel.add(textAverageHighTemp);
JLabel labelAverageLowTemp = new JLabel("Average Low:");
tempPanel.add(labelAverageLowTemp);
textAverageLowTemp = new JTextField(5);
textAverageLowTemp.setEditable(false);
tempPanel.add(textAverageLowTemp);
buttonCalculate = new JButton("Lookup Temp.");
buttonCalculate.addActionListener(listen);
buttonCalculate.setToolTipText("Looks up the temperature for year selected.");
tempPanel.add(buttonCalculate);
buttonExit = new JButton ("Exit");
buttonExit.addActionListener(listen);
buttonExit.setToolTipText("Closes the program.");
tempPanel.add(buttonExit);
this.add(tempPanel);
this.setVisible(true);
} // End method
private class ButtonListener implements ActionListener
{ // Begin inner class
public void actionPerformed (ActionEvent e)
{ // Begin method
if(e.getSource() == buttonCalculate)
{
String selectedItem = ((String)comboYearSelector.getSelectedItem());
// Get index of year array
for( int i = 0; i< yearTemp.length; i++)
{
if(yearTemp[i].equals(selectedItem))
{
int year = i;
int index = Arrays.binarySearch(yearTemp, year);
int lowTemp = highLowTemp[index*2];
int highTemp = highLowTemp[index*2+1];
String stringLowTemp = (Integer.toString(lowTemp));
String stringHighTemp = (Integer.toString(highTemp));
String displayLow = (String.format("%.2f", (stringLowTemp)));
String displayHigh = (String.format("%.2f", (stringHighTemp)));
textLowTemp.setText(displayLow);
textHighTemp.setText(displayHigh);
} // End inner if
} // End For Loop
} // End Outer If
else if (e.getSource().equals(buttonExit))
{
System.exit(0);
}
} // End method
} // End inner class
}// End class
Here is the example GUI to build the yearTemp array's combo box and on selecting a year retrieves corresponding high and low temperatures from the highLowTemp array.
import java.util.*;
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class YearTempsTest {
private static final String [] yearTemp = new String [] {
"1951", "1952", "1953", "1954", "1955", "1956", "1957", "1958",
"1959", "1960", "1961", "1962", "1963", "1964", "1965", "1966",
"1967", "1968", "1969", "1970", "1971", "1972", "1973", "1974",
"1975", "1976", "1977", "1978", "1979", "1980", "1981", "1982",
"1983", "1984", "1985", "1987", "1988", "1989", "1990", "1991",
"1992", "1993", "1994", "1995", "1996", "1997", "1998", "1999",
"2000", "2001", "2002", "2003", "2004", "2005", "2006", "2007",
"2008", "2009", "2010", "2011", "2012", "2013", "2014", "2015",
"2016"};
private static final int [] highLowTemp = new int [] {
7, 68, 9, 77, 20, 65, -7, 63, -3, 66, 8, 62, -2, 63, 3, 58,
-5, 69, 8, 70, -12, 58, -12, 71, -28, 67, -6, 66, -14, 68, -15, 62,
10, 73, 0, 64, -12, 60, -14, 66, 7, 67, -8, 71, 0, 62, 13, 69,
6, 70, -3, 57, -13, 41, -6, 60, 0, 60, 15, 56, -2, 62, -19, 62,
11, 57, -2, 61, -16, 63, -7, 62, -2, 61, 18, 67, 13, 68, 14, 62,
4, 58, 12, 67, -32, 54, 3, 69, 7, 68, -2, 68, 6, 66, 4, 73,
5, 69, 3, 61, 11, 72, -8, 57, 1, 70, 6, 69, 15, 65, 7, 67,
1, 70, 0, 60, 2, 57, 3, 62, 15, 64, 14, 68, -4, 57, 2, 59,
5, 64};
public static void main (String [] args) {
new YearTempsTest().buildGui();
}
private void buildGui () {
JFrame dialog = new JFrame("Year & temps");
JComboBox<String> yearCombo = new JComboBox<>(yearTemp);
yearCombo.addItemListener(new YearItemListener());
dialog.add(yearCombo);
dialog.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
dialog.setLocation(300, 200);
dialog.setSize(300, 100);
dialog.setVisible(true);
}
private class YearItemListener implements ItemListener {
@Override public void itemStateChanged(ItemEvent e) {
if (e.getStateChange() == ItemEvent.SELECTED) {
String year = (String) e.getItem();
// get index of year array
int ix = Arrays.binarySearch(yearTemp, year, Comparator.naturalOrder());
// get the high low temps using year array index
int lowTemp = highLowTemp [ix*2];
int highTemp = highLowTemp [ix*2 + 1];
// work with the two temp values (show in a text field, etc.)
System.out.println(year + " -> " + lowTemp + " :: " + highTemp);
}
}
}
}
EDIT: Note that it is assumed that the elements of yearTemp array are in sorted order (it looks like its already so). This is required for the binarySearch to work correctly.