我有这段代码,如何用java将它从控制台传输到GUI?
我有这段代码,在控制台上做得很好,功能也很好,但我需要将它转换到GUI,例如,我有4个操作,它们是计算和处理中值、模式、平均值和标准偏差。因此,我需要有4个文本字段输入和一个按钮来计算4个操作,并在程序本身或弹出窗口上显示我有这段代码,如何用java将它从控制台传输到GUI?,java,user-interface,median,mode,Java,User Interface,Median,Mode,我有这段代码,在控制台上做得很好,功能也很好,但我需要将它转换到GUI,例如,我有4个操作,它们是计算和处理中值、模式、平均值和标准偏差。因此,我需要有4个文本字段输入和一个按钮来计算4个操作,并在程序本身或弹出窗口上显示 导入javax.sound.midi.SysexMessage; 导入java.util.array; 导入java.util.*; 导入javafx.application.application; 导入javafx.event.ActionEvent; 导入javafx.
导入javax.sound.midi.SysexMessage;
导入java.util.array;
导入java.util.*;
导入javafx.application.application;
导入javafx.event.ActionEvent;
导入javafx.event.EventHandler;
导入javafx.scene.scene;
导入javafx.scene.control.Button;
导入javafx.scene.layout.StackPane;
导入javafx.stage.stage;
导入javafx.application.application;
导入javafx.scene.Group;
导入javafx.scene.scene;
导入javafx.stage.stage;
导入javafx.scene.text.text;
导入java.applet.*;
导入javax.swing.*;
公开课决赛{
按钮;
公共静态void main(字符串[]args)
{
//int[]数据集={1,2,3,4345312756,0,-234321132234};
//int[]数据集={5,3,2,5,2,5758345,32231,5,5,5,2,2};
//扫描仪=新的扫描仪(System.in);
//字符串输入=scanner.nextLine();
//
//
//
//
//
//
//
//
//
//int[]数据集=新的int[input.length()];
扫描仪=新的扫描仪(System.in);
字符串输入=scanner.nextLine();//在您的案例中从用户输入的数字
String[]list;//用于存储单个数字的列表
list=input.split(“”;//Regex将字符串拆分,以获得每个数字
//卑鄙
整数和=0;
for(字符串n:列表){
sum+=Integer.parseInt(n);
}
System.out.println(“数据集的平均值为”+
((双倍)总和/列表长度));
//中间带
数组。排序(列表);
//如果(列表长度%2!=0){
//System.out.println(“数据集的中位数是:“+Double.parseDouble(list[list.length/2]));
//}其他{
//浮点中值=(Integer.parseInt(list[list.length/2]+Integer.parseInt(list[(list.length/2)-1])/2f);
//System.out.println(“数据集的中值为:“+中值”);
////System.out.println(“数据集的中值为:“+Double.parseDouble(list[list.length/2]+list[list.length/2-1])/2.0);
// }
if(list.length%2==0){
System.out.println(“数据集的中值为:”+Double.parseDouble(list[list.length/2])+Double.parseDouble(list[list.length/2-1])/2);
}否则{
//浮点中值=(Integer.parseInt(list[list.length/2]+Integer.parseInt(list[(list.length/2)-1])/2f);
System.out.println(“数据集的中位数为:“+list[list.length/2]);
//System.out.println(“数据集的中值为:“+Double.parseDouble(list[list.length/2]+list[list.length/2-1])/2.0);
}
//模式
int maxNumber=-1;
int-maxampearancess=-1;
for(int i=0;i最大外观){
maxNumber=Integer.parseInt(列表[i]);
最大外观=计数;
}
计数=0;
}
System.out.println(“数据集的模式:“+maxNumber”);
//性病病毒
双标准差总和=0.0,标准差=0.0;
int length=list.length;
用于(字符串编号:列表){
STDVsum+=Double.parseDouble(num);
}
双平均值=标准差和/长度;
//用于(字符串编号:列表){
//标准偏差+=Double.parseDouble(Math.pow(num-mean,2));//它说运算符-不适用。。。
// }
用于(字符串编号:列表){
int num_to_Integer=Integer.parseInt(num);
标准偏差+=Math.pow(num_to_Integer-mean,2);//现在不需要解析
}
系统输出打印项次(“标准偏差”+数学sqrt(标准偏差/长度));
}
}
从控制台程序移动到GUI程序需要的不仅仅是更改主要方法。GUI程序是事件驱动的
我所说的事件驱动是指,例如,按下一个按钮,触发一个事件。作为程序员,您负责编写触发该事件时发生的事情
所以我有一些建议
- 您应该阅读教程,并学习一些基本知识 以及它们是如何工作的。一些基本的是,, ,
- 你肯定需要专注于如何写作。 您可能需要关注的一些基本问题是鼠标事件的按键
- 您可以使用轻松创建表单并实现其功能 功能。这总是一个好的开始。一旦你学会了基本的东西,然后继续学习一些更复杂的材料
- 使用一些先进的IDE,如、等。以下是一些基本项目
- 您正在从控制台获取输入。相反,你可以使用
或JTextFields
,您希望获得输入JTextArea
- 您可以使用一些
来触发需要 填写jtext字段后执行JButtons
- 您可以使用
来编写您在控制台上编写的内容,而不是将您通常编写的内容写入控制台。如果你有系列或句子,你可以使用JTextArea的方法JTextArea
import java.util.Arrays;
public class StackOverflow extends javax.swing.JFrame {
String[] list;
/**
* Creates new form StackOverflow
*/
public StackOverflow() {
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() {
mainPanel = new javax.swing.JPanel();
inputTxt = new javax.swing.JTextField();
scrollPane = new javax.swing.JScrollPane();
consoleTxt = new javax.swing.JTextArea();
stdvBtn = new javax.swing.JButton();
modeBtn = new javax.swing.JButton();
medianBtn = new javax.swing.JButton();
meanBtn = new javax.swing.JButton();
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
inputTxt.addKeyListener(new java.awt.event.KeyAdapter() {
public void keyReleased(java.awt.event.KeyEvent evt) {
inputTxtKeyReleased(evt);
}
});
consoleTxt.setColumns(20);
consoleTxt.setRows(5);
scrollPane.setViewportView(consoleTxt);
stdvBtn.setText("STDV");
stdvBtn.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
stdvBtnActionPerformed(evt);
}
});
modeBtn.setText("Mode");
modeBtn.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
modeBtnActionPerformed(evt);
}
});
medianBtn.setText("Median");
medianBtn.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
medianBtnActionPerformed(evt);
}
});
meanBtn.setText("Mean");
meanBtn.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
meanBtnActionPerformed(evt);
}
});
javax.swing.GroupLayout mainPanelLayout = new javax.swing.GroupLayout(mainPanel);
mainPanel.setLayout(mainPanelLayout);
mainPanelLayout.setHorizontalGroup(
mainPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(mainPanelLayout.createSequentialGroup()
.addContainerGap()
.addGroup(mainPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(inputTxt)
.addComponent(scrollPane)
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, mainPanelLayout.createSequentialGroup()
.addGap(0, 370, Short.MAX_VALUE)
.addComponent(meanBtn)
.addGap(18, 18, 18)
.addComponent(medianBtn)
.addGap(18, 18, 18)
.addComponent(modeBtn)
.addGap(18, 18, 18)
.addComponent(stdvBtn)))
.addContainerGap())
);
mainPanelLayout.setVerticalGroup(
mainPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(mainPanelLayout.createSequentialGroup()
.addContainerGap()
.addComponent(inputTxt, javax.swing.GroupLayout.PREFERRED_SIZE, 50, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(18, 18, 18)
.addComponent(scrollPane, javax.swing.GroupLayout.PREFERRED_SIZE, 137, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 78, Short.MAX_VALUE)
.addGroup(mainPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(stdvBtn)
.addComponent(modeBtn)
.addComponent(medianBtn)
.addComponent(meanBtn))
.addContainerGap())
);
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(mainPanel, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(mainPanel, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
);
setSize(new java.awt.Dimension(730, 381));
setLocationRelativeTo(null);
}// </editor-fold>
private void inputTxtKeyReleased(java.awt.event.KeyEvent evt) {
list = inputTxt.getText().split(" ");
}
private void meanBtnActionPerformed(java.awt.event.ActionEvent evt) {
int sum = 0;
for (String n : list) {
sum += Integer.parseInt(n);
}
consoleTxt.append("The mean of the data set is " + ((double) sum / list.length) + "\n");
}
private void medianBtnActionPerformed(java.awt.event.ActionEvent evt) {
Arrays.sort(list);
if (list.length % 2 == 0) {
consoleTxt.append("The median of the data set is: " + Double.parseDouble(list[list.length / 2]) + Double.parseDouble(list[list.length / 2 - 1]) / 2 + "\n");
} else {
consoleTxt.append("The median of the data set is: " + list[list.length / 2] + "\n");
}
}
private void modeBtnActionPerformed(java.awt.event.ActionEvent evt) {
int maxNumber = -1;
int maxAppearances = -1;
for (int i = 0; i < list.length; i++) {
int count = 0;
for (int j = 0; j < list.length; j++) {
if (list[i].equals(list[j])) {
count++;
}
}
if (count > maxAppearances) {
maxNumber = Integer.parseInt(list[i]);
maxAppearances = count;
}
count = 0;
}
consoleTxt.append("The mode of the data set: " + maxNumber + "\n");
}
private void stdvBtnActionPerformed(java.awt.event.ActionEvent evt) {
double STDVsum = 0.0, standardDeviation = 0.0;
int length = list.length;
for (String num : list) {
STDVsum += Double.parseDouble(num);
}
double mean = STDVsum / length;
for (String num : list) {
int num_to_Integer = Integer.parseInt(num);
standardDeviation += Math.pow(num_to_Integer - mean, 2);
}
consoleTxt.append("STDV " + Math.sqrt(standardDeviation / length) + "\n");
}
/**
* @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(StackOverflow.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (InstantiationException ex) {
java.util.logging.Logger.getLogger(StackOverflow.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (IllegalAccessException ex) {
java.util.logging.Logger.getLogger(StackOverflow.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (javax.swing.UnsupportedLookAndFeelException ex) {
java.util.logging.Logger.getLogger(StackOverflow.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 StackOverflow().setVisible(true);
}
});
}
// Variables declaration - do not modify
private javax.swing.JTextArea consoleTxt;
private javax.swing.JTextField inputTxt;
private javax.swing.JPanel mainPanel;
private javax.swing.JButton meanBtn;
private javax.swing.JButton medianBtn;
private javax.swing.JButton modeBtn;
private javax.swing.JScrollPane scrollPane;
private javax.swing.JButton stdvBtn;
// End of variables declaration
}
private javax.swing.JTextArea consoleTxt;
private javax.swing.JTextField inputTxt;
private javax.swing.JPanel mainPanel;
private javax.swing.JButton meanBtn;
private javax.swing.JButton medianBtn;
private javax.swing.JButton modeBtn;
private javax.swing.JButton stdvBtn;
meanBtn.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
meanBtnActionPerformed(evt);
}
});
private void meanBtnActionPerformed(java.awt.event.ActionEvent evt) {
int sum = 0;
for (String n : list) {
sum += Integer.parseInt(n);
}
consoleTxt.append("The mean of the data set is " + ((double) sum / list.length) + "\n");
}
inputTxt.addKeyListener(new java.awt.event.KeyAdapter() {
public void keyReleased(java.awt.event.KeyEvent evt) {
inputTxtKeyReleased(evt);
}
});