Class Test

메인화면

public class ClassTest {

public ClassTest() {

}

public static void main(String[] args) {

RGB r1 = new RGB(1, 1);

r1.setVisible(true);

RGB r2 = new RGB(510, 1);

r2.setVisible(true);

RGB r3 = new RGB(1, 400);

r3.setVisible(true);

//////

ClockEx ce1 = new ClockEx(1, 800);

ClockEx ce2 = new ClockEx(400, 700);

}

}

=====================================================================

화면2. RGB

import java.awt.BorderLayout;

import java.awt.Color;

import java.awt.Font;

import java.awt.GridLayout;

import javax.swing.JFrame;

import javax.swing.JLabel;

import javax.swing.JPanel;

import javax.swing.JSlider;

import javax.swing.border.LineBorder;

import javax.swing.border.TitledBorder;

import javax.swing.event.ChangeEvent;

import javax.swing.event.ChangeListener;

public class RGB extends JFrame implements ChangeListener{

JLabel rgbLbl = new JLabel("RGB(150, 150, 150)", JLabel.CENTER);

JPanel rgbView = new JPanel();

int red=150, green=150, blue=150;

Color color = new Color(150, 150, 150);

//패널만들기

JPanel rgbInfo = new JPanel(new BorderLayout());

JPanel labelPane = new JPanel(new GridLayout(3, 1));

JLabel redLbl = new JLabel("RED");

JLabel greenLbl = new JLabel("GREEN");

JLabel blueLbl = new JLabel("BLUE");

JPanel sliderPane = new JPanel(new GridLayout(3, 1));

JSlider redSlider = new JSlider(0, 255, 150);

JSlider greenSlider = new JSlider(0, 255, 150);

JSlider blueSlider = new JSlider(0, 255, 150);

JPanel colorPane = new JPanel(new GridLayout(3, 1));

JLabel redClrLbl = new JLabel("                    ");

JLabel greenClrLbl = new JLabel("                    ");

JLabel blueClrLbl = new JLabel("                    ");

public RGB(){}

public RGB(int x, int y) {

add(rgbLbl, "North");

rgbView.setBackground(color); //패널컬러세팅

add(rgbView, "Center");

labelPane.add(redLbl); labelPane.add(greenLbl); labelPane.add(blueLbl);

rgbInfo.add(labelPane, "West");

redSlider.setMajorTickSpacing(50);

redSlider.setMinorTickSpacing(5);

redSlider.setPaintTicks(true);

redSlider.setPaintLabels(true);

greenSlider.setMajorTickSpacing(50);

greenSlider.setMinorTickSpacing(5);

greenSlider.setPaintTicks(true);

greenSlider.setPaintLabels(true);

blueSlider.setMajorTickSpacing(50);

blueSlider.setMinorTickSpacing(5);

blueSlider.setPaintTicks(true);

blueSlider.setPaintLabels(true);

sliderPane.add(redSlider); sliderPane.add(greenSlider); sliderPane.add(blueSlider);

rgbInfo.add(sliderPane, "Center");

LineBorder lb = new LineBorder(Color.CYAN, 3);

TitledBorder tb = new TitledBorder(lb, "Color Split", TitledBorder.CENTER, 

TitledBorder.CENTER, new Font("Serif", Font.BOLD, 15), Color.BLACK);

rgbInfo.setBorder(tb);

redClrLbl.setOpaque(true);

redClrLbl.setBackground(new Color(150, 0, 0));

greenClrLbl.setOpaque(true);

greenClrLbl.setBackground(new Color(0, 150, 0));

blueClrLbl.setOpaque(true);

blueClrLbl.setBackground(new Color(0, 0, 150));

colorPane.add(redClrLbl); colorPane.add(greenClrLbl); colorPane.add(blueClrLbl);

rgbInfo.add(colorPane, "East");

add(rgbInfo, "South");

setBounds(x, y, 500, 350);

// setSize(500, 350);

// setVisible(true);

//이벤트 등록

redSlider.addChangeListener(this);

greenSlider.addChangeListener(this);

blueSlider.addChangeListener(this);

}

public void stateChanged(ChangeEvent ce){

Object obj = ce.getSource();

if(obj == redSlider){

red = redSlider.getValue();

redClrLbl.setBackground(new Color(red, 0, 0));

}else if(obj == greenSlider){

green = greenSlider.getValue();

greenClrLbl.setBackground(new Color(0, green, 0));

}else if(obj == blueSlider){

blue = blueSlider.getValue();

blueClrLbl.setBackground(new Color(0, 0, blue));

}

rgbView.setBackground(new Color(red, green, blue));

rgbLbl.setText("RGB("+red+", "+green+", "+blue+")");

}

// public static void main(String[] args) {

// new RGB();

//

// }

}

=====================================================================

화면3. 시계

import java.awt.Font;

import java.util.Calendar;

import javax.swing.JFrame;

import javax.swing.JLabel;

public class ClockEx2 extends Thread{

JFrame frm = new JFrame("시계");

JLabel timeLbl = new JLabel();

Font fnt = new Font("Serif", Font.BOLD, 100);

public ClockEx2(){}

public ClockEx2(int x, int y){

frm.add(timeLbl, "Center");

timeLbl.setFont(fnt);

setTime();

frm.setBounds(x, y, 400, 200);

// pack();

frm.setVisible(true);

}

//Thread Class의 run() 메소드 오버라이딩

public void run(){

while(true){

try{

Thread.sleep(1000);

}catch(Exception e){}

setTime();

}

}

public void setTime(){

Calendar cal = Calendar.getInstance();

int hour = cal.get(Calendar.HOUR_OF_DAY);

int minute = cal.get(Calendar.MINUTE);

int second = cal.get(Calendar.SECOND);

String timeStr = "";

if(hour<10){

timeStr="0"+hour+":";

}else{

timeStr=hour+":";

}

if(minute<10){

timeStr+="0"+minute+":";

}else{

timeStr+=minute+":";

}

if(second<10){

timeStr+="0"+second;

}else{

timeStr+=second;

}

timeLbl.setText(timeStr);

}

// public static void main(String[] args) {

// new ClockEx();

//

// }

}