How do i draw a clock showing 3'0 Clock??

Question

Hi
This is the code for a clock im drawing. However, i need it to show 3'0 clock, with the second hand at 7, but now all the needle is pointing at 12. How and what do i change? Hope someone can explain to me clearly what to do cos' im quite blur.
import java.awt.*;
import javax.swing.*;
class DisplayClock extends JFrame
public static void main(String[] args)
int hour = 0;
int minute = 0;
int second = 0;
if (args.length > 3) {
System.out.println("Usage: java DisplayClock hour minute second");
System.exit(0);
else if (args.length == 3)
hour = new Integer(args[0]).intValue();
minute = new Integer(args[1]).intValue();
second = new Integer(args[2]).intValue();
else if (args.length == 2)
hour = new Integer(args[0]).intValue();
minute = new Integer(args[1]).intValue();
else if (args.length == 3)
hour = new Integer(args[0]).intValue();
DisplayClock frame = new DisplayClock();
frame.setTitle("3 O'Clock");
frame.getContentPane().add(new DrawClock(hour, minute, second));
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setSize(300, 200);
frame.setVisible(true);
class DrawClock extends JPanel
private int hour;
private int minute;
private int second;
protected int xCenter, yCenter;
protected int clockRadius;
public DrawClock(int hour, int minute, int second)
this.hour = hour;
this.minute = minute;
this.second = second;
public void paintComponent(Graphics g) {
super.paintComponent(g);
clockRadius = (int)(Math.min(getSize().width, getSize().height)*0.7*0.5);
xCenter = (getSize().width)/2;
yCenter = (getSize().height)/2;
//Draw numbers on Clock
g.drawString("12", xCenter-5, yCenter-clockRadius);
g.drawString("9", xCenter-clockRadius-80, yCenter+3);
g.drawString("3", xCenter+clockRadius+75, yCenter+3);
g.drawString("6", xCenter-3, yCenter+clockRadius+10);
//Draw second hand
int sLength = (int)(clockRadius*0.9);
int xSecond = (int)(xCenter + sLength*Math.sin(second*(2*Math.PI/60)));
int ySecond = (int)(yCenter - sLength*Math.cos(second*(2*Math.PI/60)));
g.setColor(Color.red);
g.drawLine(xCenter, yCenter, xSecond, ySecond);
//Draw minute hand
int mLength = (int)(clockRadius*0.75);
int xMinute = (int)(xCenter + mLength*Math.sin(minute*(2*Math.PI/60)));
int yMinute = (int)(yCenter - mLength*Math.cos(minute*(2*Math.PI/60)));
g.setColor(Color.black);
g.drawLine(xCenter, yCenter, xMinute, yMinute);
//Draw hour hand
int hLength = (int)(clockRadius*0.75);
int xHour = (int)(xCenter +                
hLength*Math.sin((hour+minute/60.0)*(2*Math.PI/12)));
int yHour = (int)(yCenter -                
hLength*Math.cos((hour+minute/60.0)*(2*Math.PI/12)));
g.setColor(Color.black);
g.drawLine(xCenter, yCenter, xHour, yHour);
}

Answer 1

Before people complain...
import java.awt.*;
import javax.swing.*;
class DisplayClock extends JFrame
public static void main(String[] args)
int hour = 0;
int minute = 0;
int second = 0;
if (args.length > 3) {
System.out.println("Usage: java DisplayClock hour minute second");
System.exit(0);
else if (args.length == 3)
hour = new Integer(args[0]).intValue();
minute = new Integer(args[1]).intValue();
second = new Integer(args[2]).intValue();
else if (args.length == 2)
hour = new Integer(args[0]).intValue();
minute = new Integer(args[1]).intValue();
else if (args.length == 3)
hour = new Integer(args[0]).intValue();
DisplayClock frame = new DisplayClock();
frame.setTitle("3 O'Clock");
frame.getContentPane().add(new DrawClock(hour, minute, second));
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setSize(300, 200);
frame.setVisible(true);
class DrawClock extends JPanel
private int hour;
private int minute;
private int second;
protected int xCenter, yCenter;
protected int clockRadius;
public DrawClock(int hour, int minute, int second)
this.hour = hour;
this.minute = minute;
this.second = second;
public void paintComponent(Graphics g) {
super.paintComponent(g);
clockRadius = (int)(Math.min(getSize().width, getSize().height)*0.7*0.5);
xCenter = (getSize().width)/2;
yCenter = (getSize().height)/2;
//Draw numbers on Clock
g.drawString("12", xCenter-5, yCenter-clockRadius);
g.drawString("9", xCenter-clockRadius-80, yCenter+3);
g.drawString("3", xCenter+clockRadius+75, yCenter+3);
g.drawString("6", xCenter-3, yCenter+clockRadius+10);
//Draw second hand
int sLength = (int)(clockRadius*0.9);
int xSecond = (int)(xCenter + sLength*Math.sin(second*(2*Math.PI/60)));
int ySecond = (int)(yCenter - sLength*Math.cos(second*(2*Math.PI/60)));
g.setColor(Color.red);
g.drawLine(xCenter, yCenter, xSecond, ySecond);
//Draw minute hand
int mLength = (int)(clockRadius*0.75);
int xMinute = (int)(xCenter + mLength*Math.sin(minute*(2*Math.PI/60)));
int yMinute = (int)(yCenter - mLength*Math.cos(minute*(2*Math.PI/60)));
g.setColor(Color.black);
g.drawLine(xCenter, yCenter, xMinute, yMinute);
//Draw hour hand
int hLength = (int)(clockRadius*0.75);
int xHour = (int)(xCenter +
hLength*Math.sin((hour+minute/60.0)*(2*Math.PI/12)));
int yHour = (int)(yCenter -
hLength*Math.cos((hour+minute/60.0)*(2*Math.PI/12)));
g.setColor(Color.black);
g.drawLine(xCenter, yCenter, xHour, yHour);
}