我安装了Mac OS X Mavericks(10.9),我正在使用Jetty发布一个Web应用程序.我打字
sudo ipfw add 100 fwd 127.0.0.1,8080 tcp from any to any 80 in
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(我的主机文件有127.0.0.1 abc.com)
但Safari无法连接到abc.com.它虽然在OS X 10.8中有效.为什么?
我想使用Java 8流过滤器集合,但我发现所有示例都是一个集合,Java 6是:
public class User {
public Long id;
public String name;
public User(Long id, String name) {
this.id = id;
this.name = name;
}
List<User> usersA = new ArrayList<>();
usersA.add(new User(1l,"A"));
usersA.add(new User(2l,"B"));
usersA.add(new User(3l,"C"));
List<User> usersB = new ArrayList<>();
usersB.add(new User(33l,"A"));
usersB.add(new User(34l,"B"));
usersB.add(new User(35l,"D"));
usersB.add(new User(36l,"C"));
List<User> tempUser = new ArrayList<>();
tempUser.addAll(usersB);
for (User user : usersA) {
for (User user1 : tempUser) {
System.out.println(user1.getName().equalsIgnoreCase(user.getName()));
if (user1.getName().equalsIgnoreCase(user.getName())){
System.out.println("remove:"+user1.getName());
tempUser.remove(user1);
break;
}
}
}
System.out.println("last:"+tempUser);
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而Java 8我想使用stream …