Вывод значений матрицы в визуальную форму - Java
Формулировка задачи:
Добрый день. Имеется программа, обрабатывающая матрицу и её визуальное представление в Swing. Интересует один момент: как можно отобразить саму матрицу не в консоли, а в одном из элементов Swing(в каком, в принципе, неважно) по нажатии соответствующей кнопки?
package javaapplication1;
import java.util.Random;
import java.util.Scanner;
import org.apache.log4j.*;
import org.apache.log4j.xml.DOMConfigurator;
public class JavaApplication1 {
private int[][] data;
public JavaApplication1 () {
data = new int [12][12];
Random r = new Random();
for (int i=0; i<12; i++)
for (int j=0; j<12; j++) {
data[i][j]=r.nextInt()%25;
logger.info(data[i][j]);
}
logger.info("Матрица создана.");
}
public void Show_Matrix () {
for (int i=0; i<data.length; i++) {
for (int j=0; j<data.length; j++) {
System.out.print(data[i][j]);
System.out.print(' ');
}
System.out.println();
}
logger.info("Матрица выведена на экран.");
}
public void DoStuff () {
for (int i=0; i<data.length; i++)
for (int j=0; j<data.length; j++)
if (i<=j) {
data[i][j] = 0;
logger.info(data[i][j]);
}
logger.info("Матрица преобразована.");
}
public static Logger logger = LogManager.getLogger(JavaApplication1.class.getName());
public static void main(String[] args) {
DOMConfigurator.configure("log4j2.xml");
logger.info("Запуск приложения.");
Window window = new Window();
window.setVisible(true);
}
}Решение задачи: «Вывод значений матрицы в визуальную форму»
textual
Листинг программы
package javaapplication1;
/*
* 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.
*/
public class Window extends javax.swing.JFrame {
/**
* Creates new form Window
*/
private JavaApplication1 variable;
public Window() {
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">
private void initComponents() {
jGreeting = new javax.swing.JLabel();
jDescription = new javax.swing.JTextArea();
jRandomizeButton = new javax.swing.JButton();
jDoThingsButton = new javax.swing.JButton();
jExitButton = new javax.swing.JButton();
jDisplayButton = new javax.swing.JButton();
jSeparator1 = new javax.swing.JSeparator();
jScrollPane1 = new javax.swing.JScrollPane();
jDisplayArea = new javax.swing.JEditorPane();
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
jGreeting.setFont(new java.awt.Font("Tahoma", 1, 11)); // NOI18N
jGreeting.setText("Welcome to the program!");
jDescription.setEditable(false);
jDescription.setColumns(20);
jDescription.setFont(new java.awt.Font("Arial", 0, 11)); // NOI18N
jDescription.setRows(5);
jDescription.setText("This app is very simple. You can randomize your 12x12 matrix by \npressing the \"Randomize\"-Button. \"DoThings\"-Button makes all the \ndiagonal and upper elements of the matrix zero's. \"Exit\"-Button will \nexit from the application.");
jRandomizeButton.setText("Randomize");
jRandomizeButton.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jRandomizeButtonActionPerformed(evt);
}
});
jDoThingsButton.setText("Do Things");
jDoThingsButton.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jDoThingsButtonActionPerformed(evt);
}
});
jExitButton.setText("Exit");
jExitButton.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jExitButtonActionPerformed(evt);
}
});
jDisplayButton.setText("Display");
jDisplayButton.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jDisplayButtonActionPerformed(evt);
}
});
jDisplayArea.setEditable(false);
jScrollPane1.setViewportView(jDisplayArea);
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGap(106, 106, 106)
.addComponent(jGreeting))
.addGroup(layout.createSequentialGroup()
.addGap(18, 18, 18)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
.addComponent(jDescription, javax.swing.GroupLayout.DEFAULT_SIZE, 330, Short.MAX_VALUE)
.addGroup(layout.createSequentialGroup()
.addComponent(jRandomizeButton)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(jDoThingsButton)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(jDisplayButton)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(jExitButton, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
.addComponent(jSeparator1)
.addComponent(jScrollPane1))))
.addContainerGap(16, Short.MAX_VALUE))
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addContainerGap()
.addComponent(jGreeting)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(jDescription, javax.swing.GroupLayout.PREFERRED_SIZE, 59, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(jSeparator1, javax.swing.GroupLayout.PREFERRED_SIZE, 10, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(jScrollPane1, javax.swing.GroupLayout.DEFAULT_SIZE, 128, Short.MAX_VALUE)
.addGap(18, 18, 18)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jRandomizeButton)
.addComponent(jDoThingsButton)
.addComponent(jDisplayButton)
.addComponent(jExitButton))
.addContainerGap())
);
pack();
}// </editor-fold>
private void jRandomizeButtonActionPerformed(java.awt.event.ActionEvent evt) {
variable.logger.info("jRandomizeButton нажата.");
variable = new JavaApplication1();
System.out.println("Первоначальная матрица: ");
variable.Show_Matrix();
System.out.println(' ');
}
private void jDoThingsButtonActionPerformed(java.awt.event.ActionEvent evt) {
variable.logger.info("jDoThingsButton нажата.");
variable.DoStuff();
System.out.println("Результирующая матрица: ");
variable.Show_Matrix();
System.out.println(' ');
}
private void jExitButtonActionPerformed(java.awt.event.ActionEvent evt) {
variable.logger.info("jExitButton нажата.");
variable.logger.info("Выход из приложения.");
dispose();
}
private void jDisplayButtonActionPerformed(java.awt.event.ActionEvent evt) {
variable.logger.info("jDisplayButton нажата.");
}
/**
* @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 [url]http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html[/url]
*/
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(Window.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (InstantiationException ex) {
java.util.logging.Logger.getLogger(Window.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (IllegalAccessException ex) {
java.util.logging.Logger.getLogger(Window.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (javax.swing.UnsupportedLookAndFeelException ex) {
java.util.logging.Logger.getLogger(Window.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 Window().setVisible(true);
}
});
}
// Variables declaration - do not modify
private javax.swing.JTextArea jDescription;
private javax.swing.JEditorPane jDisplayArea;
private javax.swing.JButton jDisplayButton;
private javax.swing.JButton jDoThingsButton;
private javax.swing.JButton jExitButton;
private javax.swing.JLabel jGreeting;
private javax.swing.JButton jRandomizeButton;
private javax.swing.JScrollPane jScrollPane1;
private javax.swing.JSeparator jSeparator1;
// End of variables declaration
}