Contoh berbagi jam kecil yang diimplementasikan di java

复制代码代码如下:

//paket com.clock;

impor java.awt.BasicStroke;

impor java.awt.Color;

impor java.awt.Font;

impor java.awt.Graphics;

impor java.awt.Graphics2D;

impor java.awt.Insets;

impor java.awt.event.ActionEvent;

impor java.awt.event.ActionListener;

impor java.awt.event.WindowAdapter;

impor java.awt.event.WindowEvent;

import java.util.Kalender;

import java.util.GregorianCalendar;

import javax.swing.*;

impor javax.swing.JFrame;

Jam kelas publik memperluas implementasi JFrame ActionListener{

RAD ganda akhir pribadi=Math.PI/180;

Jam publik(){

super("Jam");

setUkuran(400, 400);

setLokasi(400, 200);

setVisible(benar);

setResizable(benar);

setBackground(Warna.putih);

addWindowListener(WindowAdapter baru() {

@Mengesampingkan

jendela kekosongan publikPenutupan(WindowEvent e) {

Sistem.keluar(0);

}

});

ActionListener drawClock=ActionListener baru() {

@Mengesampingkan

public void actionPerformed(ActionEvent e) {

mengecat ulang();

}

};

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

}

@Mengesampingkan

kekosongan publik actionPerformed(ActionEvent e) {}

cat void publik(Grafik g){

Grafik2D g2=(Grafik2D)g;

Sisipkan sisipan=getInsets();

int h=getSize().tinggi;

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

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

ke dalam r=200;

int R1=140;

int initRad=60;

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

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

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

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

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

initRad-=30;

}

int R2=150;

int initRad2=-120;

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

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

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

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

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

initRad2-=30;

}

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

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

Kalender sekarang=New GregorianCalendar();

int jam=sekarang.dapatkan(Kalender.HOUR_OF_DAY);

int menit=sekarang.dapatkan(Kalender.MINUTE);

int detik=sekarang.dapatkan(Kalender.SECOND);

Waktu senar;

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

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

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

g.setColor(Warna.PUTIH);

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

g.setColor(Warna.merah);

g.drawString(waktu, 10, 50);

int S=90 detik*6;

int M=90 menit*6;

int H=90 jam*30 menit/2;

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

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

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

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

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

int yy=(int) (200-130*Matematika.sin(RAD*SS));

g.setColor(getBackground());

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

g.setColor(Warna.hitam);

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

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

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

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

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

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

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

g.setColor(getBackground());

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

g.setColor(Warna.biru);

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

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

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

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

int HH=90-(jam-1)*30-menit/2;;

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

int yyy1=(int) (200-90*Matematika.sin(RAD*HH));

g.setColor(Warna.putih);

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

g.setColor(Warna.hijau);

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

}

public static void main(String[] args) {

Jam baru();

}

}