我写了一个简单的打包程序:
//A simple package
package MyPack
class Balance
{
String name;
double bal;
Balance(String n, double b)
{
name=n;
bal=b;
}
void show()
{
if(bal<0)
System.out.println("-->");
System.out.println(name+ ": $:" +bal);
}
}
class AccountBalance
{
public static void main(String args[])
{
Balance current[]=new Balance[3];
current[0]=new Balance("A.K.Juwatkar",123.123);
current[1]=new Balance("A.P.Dhoke",345.67);
current[2]=new Balance("Anil Sarang",100.98);
for(int i=0;i<3;i++)
current[i].show();
}
}
我正在使用 Ubuntu 10.04 & 当我使用它编译它时
java MyPack.AccountBalance
我收到以下消息:
Exception in thread "main" java.lang.NoClassDefFoundError: MyPack/AccountBalance
Caused by: java.lang.ClassNotFoundException: MyPack.AccountBalance
at java.net.URLClassLoader$1.run(URLClassLoader.java:217)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:205)
at java.lang.ClassLoader.loadClass(ClassLoader.java:321)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:294)
at java.lang.ClassLoader.loadClass(ClassLoader.java:266)
Could not find the main class: MyPack.AccountBalance. Program will exit.
怎么了?请帮帮我。我已经安装了openjdk,我还需要安装什么吗?我正在使用 Ubuntu 10.04,请帮帮我