barwin.java

来自「多层次文档界面设计」· Java 代码 · 共 89 行

import javax.swing.*;
import java.awt.*;
import javax.swing.border.*;
public class BarWin extends JFrame implements Runnable{
	
JProgressBar pbar1,pbar2;
Thread thread1,thread2;
JTextField text1,text2;
BarWin(){
	pbar1=new JProgressBar(0,100);
	pbar2=new JProgressBar(0,100);
	pbar1.setStringPainted(true);
	pbar2.setStringPainted(true);
	text1=new JTextField(10);
	text2=new JTextField(10);
	thread1=new Thread(this);
	thread2=new Thread(this);
	Box boxV1=Box.createVerticalBox();
	boxV1.add(pbar1);
	boxV1.add(pbar2);
	Box boxV2=Box.createVerticalBox();
	boxV2.add(text1);
	boxV2.add(text2);
	Box baseBox=Box.createHorizontalBox();
	baseBox.add(boxV1);
	baseBox.add(boxV2);
	Container con=getContentPane();
	con.setLayout(new FlowLayout());
	con.add(baseBox);
	setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
	setBounds(10,10,300,300);
	setVisible(true);
	validate();
	
	
}
public void run()
{
	if(Thread.currentThread()==thread1)
	{for(int i=1;i<=100;i++)
	{
		text1.setText("第"+i+"项="+f(i));
		pbar1.setValue(i);
		try{
		Thread.sleep(500);	
		}
		catch(InterruptedException e)
		{
			
		}
	}
	}
	if(Thread.currentThread()==thread2)
	{
		long a1=1,a2=2,a=a1;
		int i=1;
		while(i<=100)
		{
			if(i>=3)
			{
				a=a1+a2;
				a1=a2;
				a2=a;
				
			}
			text2.setText("第"+i+"项＝"+a);
			pbar2.setValue(i);
			i++;
			try
			{
				Thread.sleep(500);
			}
			catch(InterruptedException e){
				
			}
		}
	}
}
long f(int n)
{
	long c=0;
	if(n==1||n==2)
		c=1;
	else if(n>1)
		c=f(n-1)+(n-2);
	return c;
}
}