Eclipse：導入的javacard無法解析

Question

我對Eclipse比較陌生，需要開發一個Javacard應用程序。我得到了eclipse neon和JDK8 + Java卡片開發包。我已經做了所有的教程安裝，直到這個頁面（含稅）https://docs.oracle.com/javacard/3.0.5/guide/eclipse_java_card_plug-in.htm#JCUGC127，但是當我從Java卡目錄導入項目樣本它告訴我（例如用於你好世界一個）：

APDU cannot be resolved to a type 
HelloWorld.java /HelloWorld/applet/src/com/sun/jcclassic/samples/helloworld line 65 Java Problem 
Applet cannot be resolved to a type HelloWorld.java /HelloWorld/applet/src/com/sun/jcclassic/samples/helloworld line 29 Java Problem 
ISO7816 cannot be resolved to a variable HelloWorld.java /HelloWorld/applet/src/com/sun/jcclassic/samples/helloworld line 69 Java Problem 
ISO7816 cannot be resolved to a variable HelloWorld.java /HelloWorld/applet/src/com/sun/jcclassic/samples/helloworld line 70 Java Problem 
ISO7816 cannot be resolved to a variable HelloWorld.java /HelloWorld/applet/src/com/sun/jcclassic/samples/helloworld line 78 Java Problem 
ISO7816 cannot be resolved to a variable HelloWorld.java /HelloWorld/applet/src/com/sun/jcclassic/samples/helloworld line 80 Java Problem 
The import javacard cannot be resolved HelloWorld.java /HelloWorld/applet/src/com/sun/jcclassic/samples/helloworld line 20 Java Problem 
The import javacard cannot be resolved HelloWorld.java /HelloWorld/applet/src/com/sun/jcclassic/samples/helloworld line 21 Java Problem 
The import javacard cannot be resolved HelloWorld.java /HelloWorld/applet/src/com/sun/jcclassic/samples/helloworld line 22 Java Problem 
The import javacard cannot be resolved HelloWorld.java /HelloWorld/applet/src/com/sun/jcclassic/samples/helloworld line 23 Java Problem 
The import javacard cannot be resolved HelloWorld.java /HelloWorld/applet/src/com/sun/jcclassic/samples/helloworld line 24 Java Problem 
The method register() is undefined for the type HelloWorld HelloWorld.java /HelloWorld/applet/src/com/sun/jcclassic/samples/helloworld line 38 Java Problem 
Util cannot be resolved HelloWorld.java /HelloWorld/applet/src/com/sun/jcclassic/samples/helloworld line 78 Java Problem 

而且我得到了相似的輸出與其他項目。我嘗試了一些「解決方案」，比如清理項目等，但沒有人解決這個問題。我很感激可能發生的一些提示，以及我必須做些什麼。

在此先感謝。

Answer 1

將api_xxx.jar添加到您的項目「Java構建路徑」; 庫「api_xxx.jar」位於JCKit_Dir/lib /。