//---------- javac ----------
E:\HardDisk.java:13: '{' expected
class HardDisk implenments InputDevice, OutputDevice
^
E:\HardDisk.java:31: '}' expected
^
2 errors输出完成 (耗时 0 秒) - 正常终止//编写一个程序,自定义一个接口,并用一个类去实现这个接口。interface InputDevice
{
void read();//public static
}interface OutputDevice
{
void write();
}class HardDisk implenments InputDevice, OutputDevice
{
public void read(){
System.out.print("read file from harddisk.");
} public void write(){
System.out.print("write file from harddisk."); }
public static void main(String args[])
{
HardDisk d=new HardDisk();
d.read();
d.write();
}
}
E:\HardDisk.java:13: '{' expected
class HardDisk implenments InputDevice, OutputDevice
^
E:\HardDisk.java:31: '}' expected
^
2 errors输出完成 (耗时 0 秒) - 正常终止//编写一个程序,自定义一个接口,并用一个类去实现这个接口。interface InputDevice
{
void read();//public static
}interface OutputDevice
{
void write();
}class HardDisk implenments InputDevice, OutputDevice
{
public void read(){
System.out.print("read file from harddisk.");
} public void write(){
System.out.print("write file from harddisk."); }
public static void main(String args[])
{
HardDisk d=new HardDisk();
d.read();
d.write();
}
}
java.lang.NoClassDefFoundError: HardDisk
Exception in thread "main"
输出完成 (耗时 0 秒) - 正常终止
前几天还好着呢。怎么办?连肯定对的,也没有结果。
---------- java ----------
java.lang.NoClassDefFoundError: q
Exception in thread "main"
输出完成 (耗时 0 秒) - 正常终止