import java.util.HashSet;public class DongLiang{ /**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
HashSet a = new HashSet ();
int d = 2;
while (true){
a.add(d+Math.random());
if (a.size() == 5){
break;
}
}
System.out.println(a);
}
}错误提示为 The declared package "" does not match the expected package "java.util"
这是怎么错了啊
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
HashSet a = new HashSet ();
int d = 2;
while (true){
a.add(d+Math.random());
if (a.size() == 5){
break;
}
}
System.out.println(a);
}
}错误提示为 The declared package "" does not match the expected package "java.util"
这是怎么错了啊
[2.5128036711293444, 2.9157826554553523, 2.8585588527018553, 2.579950325323357,
2.0174614169288736]F:\>