第八週實驗

第一題

import java.util.Scanner;
import java.text.DecimalFormat;

public class test
{
	public static void main(String [] args)
	{
		double r,s,v;
		Scanner scan = new Scanner(System.in);
		
		System.out.println("輸入一個球體的半徑:");
		r = scan.nextDouble();
		DecimalFormat fmt = new DecimalFormat("0.###");
		
		v = 4.0/3*Math.PI*Math.pow(r,3);
		s = 4*Math.PI*Math.pow(r,2);
		
		 System.out.println("球的體積爲："+fmt.format(v));
		 System.out.println("球的表面積爲："+fmt.format(s));
	}
}

第二題

import java.awt.*;
import javax.swing.*;

public class second
{
	public static void main(String [] args)
	{
		JFrame frame = new JFrame("MyName");
		
		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		
		JPanel name = new JPanel();
		
		JLabel firstName = new JLabel("                 Jayson");
		JLabel lastName = new JLabel("Leang                   ");
		
		name.add(lastName);
		name.add(firstName);
		
		frame.getContentPane().add(name);
		frame.pack();
		frame.setVisible(true);
	}
}