我遇到了ActionListeners的问题。
目前，当按下按钮时，我在一个类中生成一个organismId。我想在另一个班级中使用这个生成的有机体，尽管这是我遇到问题的地方。
这是我的代码片段： 第一类：
public void actionPerformed(ActionEvent e) {
String item = (String) mainComboBox.getSelectedItem();
Object o = subItems.get(item);
String organismComboItem = (String) subComboBox.getSelectedItem();
// Inserts relevant organisms into subComboBox
if (treeArray.contains(organismComboItem)) {
//System.out.println(treeArray.indexOf(organismComboItem));
String selectedId = idArray.get(treeArray.indexOf(organismComboItem));
organismId = selectedId;
setOrganismId(organismId);
}
}
public String getOrganismId() {
return organismId;
}
public void setOrganismId(String orgId) {
organismId = orgId;
}
第二课：
private MyListener
number = new MyListener();
String organismId = number.getOrganismId();
目前，在我的第二个类中，organismId仍然显示为null，而不是从第一个类生成的值。
我确定这是一个相对简单的解决方案并且花了很多时间尝试研究它，虽然我发现似乎没有任何工作因此这是我的最后手段。
以下是我的两个课程：
第1课：
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.BufferedReader;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Hashtable;
import java.util.TreeSet;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.swing.DefaultComboBoxModel;
import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JLabel;
public class MyListener implements ActionListener{
private int clickCount = 0;
private JButton addButton;
private JButton subtractButton;
private JLabel label;
private JComboBox mainComboBox;
private JComboBox subComboBox;
public static String organismId;
private Hashtable subItems = new Hashtable();
private ArrayList<String> treeArray = new ArrayList<String>();
private ArrayList<String> idArray = new ArrayList<String>();
private ArrayList<String> chromalveolataIDArray = new ArrayList<String>();
private ArrayList<String> metazoaIDArray = new ArrayList<String>();
private ArrayList<String> mycetozoaIDArray = new ArrayList<String>();
private ArrayList<String> viridiplantaeIDArray = new ArrayList<String>();
private ArrayList<String> virusesIDArray = new ArrayList<String>();
private TreeSet<String> chromalveolataTreeSet = new TreeSet<String>();
private TreeSet<String> viridiplantaeTreeSet = new TreeSet<String>();
private TreeSet<String> metazoaTreeSet = new TreeSet<String>();
private TreeSet<String> mycetozoaTreeSet = new TreeSet<String>();
private TreeSet<String> virusesTreeSet = new TreeSet<String>();
String[] treeItems = {"Select Tree", "Chromalveolata", "Metazoa", "Mycetozoa", "Viridiplantae", "Viruses"};
public MyListener(){
}
public MyListener(JButton addButton, JLabel label, JComboBox mainComboBox, JComboBox subComboBox, JButton subtractButton){
this.addButton = addButton;
this.label = label;
this.mainComboBox = mainComboBox;
this.subComboBox = subComboBox;
this.subtractButton = subtractButton;
BufferedReader bReader = null;
try {
bReader = new BufferedReader(new FileReader("organisms.txt"));
//ArrayList<Person> peopleList = new ArrayList<Person>();
// bReader.readLine(); // this will read the first line
String line = null;
ArrayList<String> organismIdArray = new ArrayList<String>();
ArrayList<String> organismArray = new ArrayList<String>();
TreeSet<String> treeSet = new TreeSet<String>();
while ((line = bReader.readLine()) != null) {
String[] treeItems = {"Select Tree", "Chromalveolata", "Metazoa", "Mycetozoa", "Viridiplantae", "Viruses"};
String[] peopleInfo = line.split("\\t|\\;");
// System.out.println(peopleInfo[3]);
String id = ">" + peopleInfo[0];
String organism = peopleInfo[2];
String tree = peopleInfo[3];
treeArray.add(organism);
idArray.add(id);
//System.out.println(treeArray);
// System.out.println(organism);
populateSubCombo("Chromalveolata", chromalveolataTreeSet, tree, organism);
populateSubCombo("Metazoa", metazoaTreeSet, tree, organism);
populateSubCombo("Mycetozoa", mycetozoaTreeSet, tree, organism);
populateSubCombo("Viridiplantae", viridiplantaeTreeSet, tree, organism);
populateSubCombo("Viruses", virusesTreeSet, tree, organism);
populateOrganismID("Chromalveolata", tree, chromalveolataIDArray, id);
populateOrganismID("Metazoa", tree, metazoaIDArray, id);
populateOrganismID("Mycetozoa", tree, mycetozoaIDArray, id);
populateOrganismID("Viridiplantae", tree, viridiplantaeIDArray, id);
populateOrganismID("Viruses", tree, virusesIDArray, id);
organismIdArray.add(id);
organismArray.add(organism);
treeSet.add(tree);
String[] defaultItems = {"> Please Select a Tree"};
subItems.put(treeItems[0], defaultItems);
String[] chromalveolataItems = chromalveolataTreeSet.toArray(new String[chromalveolataTreeSet.size()]);
subItems.put(treeItems[1], chromalveolataItems);
String[] mycetozoaItems = mycetozoaTreeSet.toArray(new String[mycetozoaTreeSet.size()]);
subItems.put(treeItems[3], mycetozoaItems);
String[] metazoaItems = metazoaTreeSet.toArray(new String[metazoaTreeSet.size()]);
subItems.put(treeItems[2], metazoaItems);
String[] viridiplantaeItems = viridiplantaeTreeSet.toArray(new String[viridiplantaeTreeSet.size()]);
subItems.put(treeItems[4], viridiplantaeItems);
String[] virusesItems = virusesTreeSet.toArray(new String[virusesTreeSet.size()]);
subItems.put(treeItems[5], virusesItems);
}
} catch (FileNotFoundException ex) {
Logger.getLogger(MatureDataOutput.class.getName()).log(Level.SEVERE, null, ex);
} catch (IOException ex) {
Logger.getLogger(Dissertation1.class.getName()).log(Level.SEVERE, null, ex);
} finally {
try {
bReader.close();
} catch (IOException ex) {
Logger.getLogger(MatureDataOutput.class.getName()).log(Level.SEVERE, null, ex);
}
}
}
public void actionPerformed(ActionEvent e) {
String item = (String) mainComboBox.getSelectedItem();
Object o = subItems.get(item);
String organismComboItem = (String) subComboBox.getSelectedItem();
// Inserts relevant organisms into subComboBox
if (treeArray.contains(organismComboItem)) {
//System.out.println(treeArray.indexOf(organismComboItem));
String selectedId = idArray.get(treeArray.indexOf(organismComboItem));
organismId = selectedId;
setOrganismId(organismId);
}
if (o == null) {
subComboBox.setModel(new DefaultComboBoxModel());
} else {
subComboBox.setModel(new DefaultComboBoxModel((String[]) o));
}
if(e.getSource() == addButton){
clickCount++;
}
else if(e.getSource() == subtractButton){
System.out.println(organismId);
}
label.setText("You've clicked " + clickCount + " times.");
}
public static TreeSet<String> populateSubCombo(String orgName, TreeSet<String> treeSet, String tree, String organism){
if (orgName.equals(tree)) {
treeSet.add("- Please Select An Organism");
treeSet.add(organism);
// list.add(id);
// System.out.println(viridiplantaeOrganismArray);
}
return treeSet;
}
public static ArrayList<String> populateOrganismID(String orgName, String tree, ArrayList<String>list, String id){
if (orgName.equals(tree)) {
list.add(id);
} return list;
}
public static void setOrganismId(String orgId) {
organismId = orgId;
}
public String getOrganismId() {
return organismId;
}
}
第2课：
import static dissertation1.Dissertation1.average;
import static dissertation1.Dissertation1.gcPerc;
import static dissertation1.Dissertation1.max;
import static dissertation1.Dissertation1.min;
import java.awt.Color;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.util.ArrayList;
import javax.swing.JButton;
import javax.swing.JFileChooser;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JTextField;
public class MyListener1 implements ActionListener {
private final JFileChooser fileChooser;
private BufferedReader br;
private final JTextField maxMiRNALength;
private final JTextField minSRNALength;
private final JTextField gcPercMIRNA;
private final JTextField minHairpinLength;
String currentLine;
ArrayList<Integer> hairpinOrganisms = new ArrayList<Integer>();
ArrayList<Integer> matureOrganisms = new ArrayList<Integer>();
ArrayList<Integer> matureGcContent = new ArrayList<Integer>();
private JButton openMatureButton;
private JButton openHairpinButton;
private JButton generateParametersButton;
private File hairpinFile;
private File matureFile;
int returnVal;
private MyListener number;
public MyListener1(JButton openMatureButton, JButton openHairpinButton, JButton generateParametersButton, JTextField maxMiRNALength, JTextField minSRNALength, JTextField gcPercMIRNA, JTextField minHairpinLength){
this.openMatureButton = openMatureButton;
this.openHairpinButton = openHairpinButton;
this.generateParametersButton = generateParametersButton;
this.maxMiRNALength = maxMiRNALength;
this.minSRNALength = minSRNALength;
this.gcPercMIRNA = gcPercMIRNA;
this.minHairpinLength = minHairpinLength;
fileChooser = new JFileChooser();
}
public void actionPerformed(ActionEvent e) {
ArrayList<Integer> gcOrgPerc = new ArrayList<Integer>();
//number = new MyListener();
String organismId = MyListener.organismId;
// String organismId = number.getOrganismId();
// System.out.println(treeArray);
// ArrayList<String> organismsString = new ArrayList<String>();
boolean printLines = false;
StringBuilder organism = new StringBuilder();
if (e.getSource() == openHairpinButton) {
returnVal = fileChooser.showOpenDialog(null);
if (returnVal == JFileChooser.APPROVE_OPTION) {
hairpinFile = fileChooser.getSelectedFile();
//File[] file = hairpinFileChooser.getSelectedFiles();
//read file
//System.out.println(organismId);
System.out.println(organismId);
}
}
else if (e.getSource() == openMatureButton) {
returnVal = fileChooser.showOpenDialog(null);
if (returnVal == JFileChooser.APPROVE_OPTION) {
matureFile = fileChooser.getSelectedFile();
//File[] file = hairpinFileChooser.getSelectedFiles();
//read file
}
}
else if (e.getSource() == generateParametersButton){
try {
br = new BufferedReader(new FileReader(hairpinFile));
} catch (Exception error) {
error.printStackTrace();
//minHairpinLength.setText(" ");
}
try{
//if (file.getName().matches("hairpin.fa") || file.getName().matches("high_conf_hairpin.fa")) {
while ((currentLine = br.readLine()) != null) {
if (printLines) {
if (currentLine.startsWith(">")) {
// We have reached the next organism, so stop printing
printLines = false;
organism.setLength(0);
} else {
// We are still printing the current organism
organism.append(currentLine);
}
}
if (currentLine.startsWith(organismId)) {
// Print this line, and start printing all lines after this (we don't want to append the current line)
//organism.append(currentLine);
printLines = true;
//won't need this following line - used as error control
//organisms.add(organism.length());
//label.setText("Min is" + min(organisms));
}
}
} catch (Exception error) {
error.printStackTrace();
//minHairpinLength.setText(" ");
}
try {
br = new BufferedReader(new FileReader(matureFile));
while ((currentLine = br.readLine()) != null) {
if (printLines) {
if (currentLine.startsWith(">")) {
// We have reached the next organism, so stop printing
printLines = false;
// Add the current organism to our collection
matureOrganisms.add(organism.length());
// Student student = new Student(organismComboItem, organism.length(), gcPerc(organism), 25);
organism.setLength(0);
} else {
// We are still printing the current organism
organism.append(currentLine);
}
}
if (currentLine.startsWith(organismId)) {
// Print this line, and start printing all lines after this (we don't want to append the current line)
//organism.append(currentLine);
System.out.println(organismId);
printLines = true;
}
}
} catch (Exception error) {
error.printStackTrace();
}
minHairpinLength.setText("" + min(hairpinOrganisms));
// minHairpinLength.setBackground(Color.white);
maxMiRNALength.setText("" + max(matureOrganisms));
maxMiRNALength.setBackground(Color.red);
minSRNALength.setText("" + min(matureOrganisms));
minSRNALength.setBackground(Color.red);
gcPercMIRNA.setText("" + average(matureGcContent));
gcPercMIRNA.setBackground(Color.red);
System.out.println(hairpinOrganisms);
}
}}
任何帮助将不胜感激！ ：）
答案 0 :(得分：0)
Yous应该可以参考MyListener1中的MyListener课程，以便在执行操作时能够organismId为其设置。
public class MyListener implements ActionListener {
...
ActionListener myListener1;
...
public MyListener(..., ActionListener myListener1){
this.myListener1 = myListener1;
...
}
public void actionPerformed(ActionEvent e) {
// logic of getting organismId is here
myListener1.setOrganismId(organismId)
...
}
public class MyListener1 implements ActionListener {
...
String organismId;
...
public void setOrganismId(String organismId) {
this.organismId = organismId
}
}