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我的覆蓋方法有上面的標題錯誤消息。我遵循這個pubnub教程來嘗試獲得一個工作示例,但無法弄清楚爲什麼我會收到這些消息。唯一的區別是我正在使用intellij。這裏的教程,以防萬一它有幫助。方法不會覆蓋java中的超類的方法
這裏是我的代碼:
import com.pubnub.api.*;
import com.sun.org.apache.xpath.internal.operations.String;
public class SubscribePublishExample {
//Creating an instance of pubnub and adding the subscribe code.
public void subscribePublish() {
final Pubnub pubnub = new Pubnub("demo", "demo");
try {
pubnub.subscribe("Hell0 World", new Callback() {
@Override
public void successCallback(String arg0, Object arg1) {
System.out.println(arg1);
}
//Adding the publish code into the connect callback.
@Override
public void connectCallback(String arg0, Object arg1) {
pubnub.publish("Hello_World", "Hello World !", new Callback() {
@Override
public void successCallback(String arg0, Object arg1) {
System.out.println(arg1);
}
});
}
});
} catch (PubnubException e) {
e.printStackTrace();
}
}
public static void main(String[] args) {
new SubscribePublishExample().subscribePublish();
}
}
我很確定你不想在你的導入中輸入「com.sun.org.apache.xpath.internal.operations.String」! –