importjava.awt.*;publicclassCalculator{publicstaticvoidmain(String[] args){Frameframe=newFrame("计算器");Panelp1=newPanel(); p1.add(newTextField(30)); frame.add(p1,BorderLayout.NORTH);Panelp2=newPanel(); p2.setLay
public void actionPerformed(ActionEvent e){Button0.addActionListener(this);if(e.getActionCommand().equals("Button1"))Text1.setText(e.getActionCommand());}你应该把这里面的Button0.addActionListener(this);添加到Calculator类函数中.因为你是在Calculator类中触发了按钮事件，然后在actionPerformed...
calculator.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);}}java计算器import java.awt.*;import java.awt.event.*;public class Calculation extends WindowAdapter implements ActionListener{double dResult=0;double dNowInput=0;double dMemory;int n=0; //记载小数位数int nOperation=1; //...
"); } } } //mathClient// import java.rmi.*; import java.rmi.registry.*; import java.awt.*; import java.awt.event.*; public class mathClient extends Frame implements ActionListener { Button B1=new Button("Sum"); Button B2=new Button("Subtract"); Button B3=new Button("Multiply");...
Swing is a cross-platform user-interface toolkit to build desktop applications with Java and is packaged with the Java SDK. Build a user interface with different look-and-feels for any platform including macOS, Windows, and Linux. With the efficiency of multithreading, Swing can integrate with ...
Calculator packagecalculator;importjava.awt.*;importjava.awt.event.*;importjavax.swing.*;/*** 具有计算器按钮和结果显示的面板*/publicclassCalculatorPanelextendsJPanel {privateJButton display;privateJPanel panel;privatedoubleresult;privateString lastCommand;privatebooleanstart;publicCalculatorPanel() { ...
import java.awt.*;import java.awt.event.*;import javax.swing.*;/ A simple calculator program.I saw this program in a QQ group, and help a friend correct it. author Singyuen Yip version 1.00 12/29/2009 see JFrame see ActionListener / publicclass JCalculator extends JFrame i...
allowing many client computers and several servers. Nondistributed applications run on the local machine and do not need to access back-end servers. You might write a simple calculator program, for instance, that might run only locally, though you can also make these kinds of applications distrib...
key.equals(".")) display.setText(display.getText() + key); isFirstDigit = false; } /** * * Reset the calculator. * */ public void handleReset() { display.setText("0"); isFirstDigit = true; operator = "="; } double number ...
javajava-appletjava-calculatorjava-8java-apijava-libraryjava-programsjava-database-applicationjava-languagejava-awtjava-codes UpdatedDec 26, 2022 Java A repository for java applets. Java applets were used to provide interactive features to web applications and were executed by browsers for many platfor...