Exemplo de compartilhamento de pequeno relógio implementado em java

复制代码代码如下:

//pacote com.clock;

importar java.awt.BasicStroke;

importar java.awt.Color;

importar java.awt.Font;

importar java.awt.Graphics;

importar java.awt.Graphics2D;

importar java.awt.Insets;

importar java.awt.event.ActionEvent;

importar java.awt.event.ActionListener;

importar java.awt.event.WindowAdapter;

importar java.awt.event.WindowEvent;

importar java.util.Calendar;

importar java.util.GregorianCalendar;

importar javax.swing.*;

importar javax.swing.JFrame;

classe pública Clock estende JFrame implementa ActionListener{

duplo final privado RAD=Math.PI/180;

relógio público(){

super("Relógio");

setSize(400, 400);

setLocation(400, 200);

setVisible(verdadeiro);

setResizable(true);

setBackground(Color.branco);

addWindowListener(new WindowAdapter() {

@Substituir

public void windowClosing(WindowEvent e) {

Sistema.exit(0);

}

});

ActionListener drawClock=new ActionListener() {

@Substituir

public void actionPerformed(ActionEvent e) {

repintar();

}

};

novo Timer(1000,drawClock).start();

}

@Substituir

public void actionPerformed(ActionEvent e) {}

public void paint(Gráficos g){

Gráfico2D g2=(Gráfico2D)g;

Inserções insert=getInsets();

int h=getSize().altura;

g2.setStroke(novo BasicStroke(3.0f));

g.drawOval(40,40,h-80,h-80);

int r=200;

interno R1=140;

int initRad=60;

for(int i=1;i<=5;i++){

int x0= (int) (r+R1*Math.cos(RAD*initRad));

int y0= (int) (r-R1*Math.sin(RAD*initRad));

g.setFont(new Font("楷体", Font.BOLD, 20));

g.drawString(""+i, x0, y0);

initRad-=30;

}

interno R2=150;

int initRad2=-120;

for(int i=7;i<=11;i++){

int x0= (int) (r+R2*Math.cos(RAD*initRad2));

int y0= (int) (r-R2*Math.sin(RAD*initRad2));

g.setFont(new Font("楷体", Font.BOLD, 20));

g.drawString(""+i, x0, y0);

initRad2-=30;

}

g.drawString("6", 190, 350);

g.drawString("12", 190, 60);

Calendário agora=new GregorianCalendar();

int hora=agora.get(Calendário.HOUR_OF_DAY);

int minuto=agora.get(Calendário.MINUTE);

int segundo = agora.get (Calendário.SEGUNDO);

Tempo de corda;

if(hora<10){time="0"+hora;}else{time=""+hora;}

if(minuto<10){time+=":0"+minuto;}else{time+=":"+minuto;}

if(segundo<10){tempo+=":0"+segundo;}else{tempo+=":"+segundo;}

g.setColor(Cor.BRANCO);

g.fillRect(10, 30, 90, 28);

g.setColor(Color.vermelho);

g.drawString(tempo, 10, 50);

int S=90 segundos*6;

int M=90 minutos*6;

int H=90 horas*30 minutos/2;

g2.setStroke(novo BasicStroke(1.0f));

int x=(int) (200+130*Math.cos(RAD*S));

int y=(int) (200-130*Math.sin(RAD*S));

int SS=90-(segundo-1)*6;

int xx=(int) (200+130*Math.cos(RAD*SS));

int aa=(int) (200-130*Math.sin(RAD*SS));

g.setColor(getBackground());

g.drawLine(200, 200, xx, aa);

g.setColor(Color.preto);

g.drawLine(200, 200, x, y);

g2.setStroke(novo BasicStroke(2.2f));

int x1=(int) (200+110*Math.cos(RAD*M));

int y1=(int) (200-110*Math.sin(RAD*M));

int MM=90-(minuto-1)*6;

int x11=(int) (200+110*Math.cos(RAD*MM));

int y11=(int) (200-110*Math.sin(RAD*MM));

g.setColor(getBackground());

g.drawLine(200, 200, x11, y11);

g.setColor(Color.azul);

g.drawLine(200, 200, x1, y1);

g2.setStroke(novo BasicStroke(4.3f));

int xx1=(int)(200+90*Math.cos(RAD*H));

int yy1=(int) (200-90*Math.sin(RAD*H));

int HH=90-(hora-1)*30 minutos/2;;

int xxx1=(int) (200+90*Math.cos(RAD*HH));

int aaaa1=(int) (200-90*Math.sin(RAD*HH));

g.setColor(Color.branco);

g.drawLine(200, 200, xxx1, yyy1);

g.setColor(Color.verde);

g.drawLine(200, 200, xx1, yy1);

}

public static void main(String[] args) {

novo Relógio();

}

}