为什么我在win dos 下:"输入java **.java"老是这样Exception in thread "main" java.lang.NoClassDefFoundError: chatmain/java
我编译环境 PATH=c:\Program Files\java\jdk1.5.0_02\bin\,没错啊,我java -version 结果E:\>java -version
java version "1.5.0_02"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_02-b09)
Java HotSpot(TM) Client VM (build 1.5.0_02-b09, mixed mode, sharing)
我编译环境 PATH=c:\Program Files\java\jdk1.5.0_02\bin\,没错啊,我java -version 结果E:\>java -version
java version "1.5.0_02"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_02-b09)
Java HotSpot(TM) Client VM (build 1.5.0_02-b09, mixed mode, sharing)
***文件不需要.java扩展名
我,java ***
show: Exception in thread "main" java.lang.NoClassDeFoundError:ctools我晕啊
import java.awt.*;
public class chatmain
{
private boolean packFrame = false; //Construct the application
public chatmain()
{
mainform frame = new mainform();
//Validate frames that have preset sizes
//Pack frames that have useful preferred size info, e.g. from their layout
if (packFrame)
{
frame.pack();
}
else
{
frame.validate();
}
//Center the window
Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
Dimension frameSize = frame.getSize();
if (frameSize.height > screenSize.height)
{
frameSize.height = screenSize.height;
}
if (frameSize.width > screenSize.width)
{
frameSize.width = screenSize.width;
}
frame.setLocation((screenSize.width - frameSize.width) / 2, (screenSize.height - frameSize.height) / 2);
frame.setVisible(true);
}
//Main method
public static void main(String[] args)
{
try
{
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
}
catch(Exception e)
{
e.printStackTrace();
}
new chatmain();
}
}
javac -d . chatmain.java
java chat.chatmain 试试
不是 java *.java
javac后没有 class