I am newCpmer too...I know it'sont your answer.but I only whrit this... Don't make joke on me! class JieCheng { public static void main(String[] args) { int temp=1; int sum=0; int n=10; for(int i=1;i<n;i++) { temp*=i; sum+=temp; } System.out.println("sum="+sum); } }
int jc(int i) { if(i<1) System.out.println("the number you write must >=1"); else if(i=1) return 1; else return i*jc(i-1); }改进一下daizhenbest(牛牛) 的东西~~~,思想就是一个递归的思想~~~~
else if(i=1)改成 else if(i==1)~~~~~,汗一个~~~~
public int jiecheng(int i){ int result=1; for(int j=2;j<=i;j++){ result*=j; } return result; } 还是最好别用递归把,太慢
采用 libo2006(笑傲江湖) 的方案吧
1,编写Applet文件MyApplet.java,内容如下:import java.applet.Applet; import java.awt.Graphics;public class MyApplet extends Applet { static int count = 1;
public void paint(Graphics g) { String parameter = getParameter("n"); int n = 1; long l = 1; try { n = Integer.parseInt(parameter); } catch (NumberFormatException e) { e.printStackTrace(); } for (int i = 2; i < n; i++) { l *= i; } g.drawString("Result is:" + l, 20, 20); }} 2.javac编译以上文件,得到:MyApplet.class 3.编写test.html文件,内容如下: <HTML> <TITLE>This is my Applet</TITLE> <APPLET CODE="MyApplet.class" WIDTH=200 HEIGHT=200> <PARAM name="n" value="7" /> </APPLET> </HTML> 4.打开test.html
Don't make joke on me!
class JieCheng
{
public static void main(String[] args)
{
int temp=1;
int sum=0;
int n=10;
for(int i=1;i<n;i++)
{
temp*=i;
sum+=temp;
}
System.out.println("sum="+sum);
}
}
{
if(i==0||i==1)
return 1;
else
return i*jc(i-1);
}
阶乖不会就搞APPLET
我只想说你强
{
if(i<1)
System.out.println("the number you write must >=1");
else if(i=1)
return 1;
else
return i*jc(i-1);
}改进一下daizhenbest(牛牛) 的东西~~~,思想就是一个递归的思想~~~~
int result=1;
for(int j=2;j<=i;j++){
result*=j;
}
return result;
}
还是最好别用递归把,太慢
import java.awt.Graphics;public class MyApplet extends Applet {
static int count = 1;
public void paint(Graphics g) {
String parameter = getParameter("n");
int n = 1;
long l = 1;
try {
n = Integer.parseInt(parameter);
} catch (NumberFormatException e) {
e.printStackTrace();
}
for (int i = 2; i < n; i++) {
l *= i;
}
g.drawString("Result is:" + l, 20, 20);
}}
2.javac编译以上文件,得到:MyApplet.class
3.编写test.html文件,内容如下:
<HTML>
<TITLE>This is my Applet</TITLE>
<APPLET
CODE="MyApplet.class"
WIDTH=200
HEIGHT=200>
<PARAM name="n" value="7" />
</APPLET>
</HTML>
4.打开test.html
netscape.javascript.*
import java.awt.FlowLayout;
import javax.swing.JPanel;
import javax.swing.JApplet;
import javax.swing.JLabel;
import javax.swing.JTextField;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;public class Test extends JApplet
{
private JPanel jContentPane = null;
private JLabel jLabel = null;
private JTextField jTextField = null;
private JLabel jLabel1 = null; /**
* This is the xxx default constructor
*/
public Test()
{
super();
} /**
* This method initializes this
*
* @return void
*/
public void init()
{
this.setSize(300, 200);
this.setContentPane(getJContentPane());
} /**
* This method initializes jContentPane
*
* @return javax.swing.JPanel
*/
private JPanel getJContentPane()
{
if (jContentPane == null)
{
jLabel1 = new JLabel();
jLabel1.setText("");
jLabel = new JLabel();
jLabel.setText("请输入N值:");
jContentPane = new JPanel();
jContentPane.setLayout(new FlowLayout());
jContentPane.add(jLabel);
jContentPane.add(getJTextField());
jContentPane.add(jLabel1, null);
}
return jContentPane;
} /**
* This method initializes jTextField
*
* @return javax.swing.JTextField
*/
private JTextField getJTextField()
{
if (jTextField == null)
{
jTextField = new JTextField(10);
jTextField.addActionListener(new java.awt.event.ActionListener()
{
public void actionPerformed(java.awt.event.ActionEvent e)
{
jLabel1.setText(String.valueOf(jc(Integer
.parseInt(jTextField.getText()))));
} private double jc(double textField)
{
double i;
i = textField;
if (i == 0 || i == 1)
{
return 1;
} else
return i * jc(i - 1);
}
});
}
return jTextField;
}
}
用eclipse3.2测试过,要嵌入到html中加:
<HTML>
<TITLE>Test</TITLE>
<APPLET
CODE="Test.class" WIDTH=300 HEIGHT=200>
</APPLET>
</HTML>
就可以拉,^_^,记得给我加分哦。