我的javaapplet只是在所有浏览器中显示回退消息。我有：
谷歌浏览器
microsoft边缘
internet explorer
以下是小程序的代码：
import javax.swing.*;
import java.awt.event.*;
public class LottoApplet extends JApplet implements ActionListener
{
// Components
ClassLoader ldr = this.getClass().getClassLoader();
java.net.URL iconURL = ldr.getResource( "Lotto.png" );
ImageIcon icon = new ImageIcon( iconURL );
JLabel img = new JLabel( icon );
JTextField txt = new JTextField( "", 18 );
JButton btn = new JButton( "Get My Lucky Numbers" );
JPanel pnl = new JPanel();
// Applet entry point
public void init()
{
pnl.add( img );
pnl.add( txt );
pnl.add( btn );
btn.addActionListener( this );
String bgStr = getParameter( "BgColor" );
int bgHex = Integer.parseInt( bgStr, 16 );
pnl.setBackground( new java.awt.Color( bgHex ));
add( pnl );
}
// Event-handler
public void actionPerformed( ActionEvent event )
{
if( event.getSource() == btn )
{
// Declare working variables.
int[] nums = new int[60];
String str = "";
// Fill elements 1-59 with integers 1-59.
for( int i = 1; i < 60; i++ ) { nums[i] = i; }
// Shuffle the values in elements 1-59.
for( int i = 1; i < 60; i++ )
{
int r = (int) Math.ceil( 59 * Math.random() ) + 1;
int temp=nums[i]; nums[i]=nums[r]; nums[r]=temp;
}
// Display the values in elements one to six.
for ( int i = 1; i < 7; i++ )
{
str += " " + Integer.toString( nums[ i ]) + " ";
}
txt.setText( str );
}
}
}这是网页的代码：
<!DOCTYPE html>
<html>
<head>
<meta charset = "UTF-8">
<title>Lotto Applet Host</title>
</head>
<body>
<object type = "application/x-java-applet" width = "260" height = "160">
<param name = "code" value = "LottoApplet.class">
<param name = "BgColor" value = "FFFF00">
<param name = "archive" value = "LottoApplet.jar">
[ Java Applet - Requires Java Plugin ]
</object>
</body>
</html>我已经从“java的简单步骤”得到了代码，所以它应该是可靠的。只是因为我的浏览器不支持它吗？
暂无答案！
目前还没有任何答案，快来回答吧！