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import javax.swing.*; import java.awt.*; import java.awt.event.*; import java.util.*; public class DB extends JFrame { static Hashtable idTable; static int idNum=1; private JLabel jLabel1 = new JLabel("ID"); private JLabel jLabel2 ; private JTextField jTextField1 = new JTextField(8); private JTextArea jTextField5 = new JTextArea(); private JButton jButton1; private JButton jButton2; public DB() ..

import java.util.*; class Stu{ private String name; private int age; Stu(String name,int age) { this.name=name; this.age=age; } Stu(int age,String name) { this.name=name; this.age=age; } Stu() { } void setName(String name) { this.name=name; } String getName() { return name; } void setAge(int age) { this.age=age; } int getAge() { return age; } public String toString() { StringBuffer str=new Strin..

import java.util.*; class Stu{ private String name; private int age; Stu(String name,int age) { this.name=name; this.age=age; } Stu(int age,String name) { this.name=name; this.age=age; } Stu() { } void setName(String name) { this.name=name; } String getName() { return name; } void setAge(int age) { this.age=age; } int getAge() { return age; } public String toString() { StringBuffer str=new Strin..

import java.awt.*; import java.awt.event.*; import javax.swing.*; public class KeyDemo extends JFrame implements KeyListener { private String [] area={"한국","중국","미국","미국","일본","캐나다","호주","러시아","프랑스","사우디"}; private String line1; private JTextField text; private JLabel jh; public KeyDemo() { super( "Demonstrating Keystroke Events" ); jh=new JLabel("숫자를 입력하세요"); text=new JTextField(20); setLayout(..

import java.awt.*; import java.awt.event.*; import javax.swing.*; public class CalculatorGUI extends JFrame implements ActionListener{ JTextField lblPrint; Calculator cc = new Calculator(); boolean flag; public CalculatorGUI(String title){ super(title); JPanel panel = new JPanel(new BorderLayout()); lblPrint = new JTextField(); panel.add(lblPrint,BorderLayout.NORTH); JPanel panelCal= new JPanel(..

import java.awt.*; import java.awt.event.*; import javax.swing.*; public class Calculator extends JFrame { static int c; static int i=0; StringBuffer mem01=new StringBuffer(); StringBuffer mem02=new StringBuffer(); char mem03='v'; char [] in=new char [10]; //숫자 입력받는곳 private JTextField input; //각 버튼들 private Button []btn = new Button[23]; //각 버튼에 들어갈 이름 private String btnText[] = { "BackSpace", ..

import javax.swing.*; import javax.swing.event.*; import java.util.*; public class ListTest extends JFrame { private JTextField text; private JList colorList; Random ra =new Random(System.currentTimeMillis()); private Container container; private final String colorNames[] = { "Black", "Blue", "Cyan", "Dark Gray", "Gray", "Green", "Light Gray", "Magenta", "Orange", "Pink", "Red", "White", "Yellow..

import java.awt.*; import java.awt.event.*; import javax.swing.*; public class Add extends JFrame { private JButton addButton, printButton; Panel pan01,pan02; JTextField text01,text02; StringBuffer str=new StringBuffer(); public Add() { super( "이름추가" ); text01 = new JTextField( 5 ); text02 = new JTextField( 10 ); text02.setEditable(false); Container container = getContentPane(); container.setLay..

import java.awt.*; import java.awt.event.*; import javax.swing.*; public class TextFieldTest extends JFrame { static String string = ""; static String string2 = ""; private JTextField textField1, textField2, textField3; public TextFieldTest() { super( "Testing JTextField and JPasswordField" ); Container container = this.getContentPane(); container.setLayout( new GridLayout(3,2) ); JLabel label=n..

import java.awt.event.*; import java.awt.*; class Fram extends Frame { public Fram(){ super("윈도우 이벤트"); setLayout(null); Button btn=new Button("버튼"); btn.setBounds(50,50,16,10); add(btn); setSize(300,200); setVisible(true); addWindowListener(new WindowAdapter() { public void windowClosing(WindowEvent e){ dispose(); System.exit(0); } } ); } } class Frame2 extends Frame { public static void main(S..