Java期末试卷，有答案。 1、编译Java Application 源程序文件将产生相应的字节码文件，这些字节码文件的扩展名为( )。 A..java B. .class C..html D. .exe 2、设 x = 1 , y = 2 , z = 3，则表达式 y＋＝z－－/＋＋x 的值是( )。 A. 3 B. 3. 5 C.4 D. 5 3、在Java Ap plet程序用户自定义的Applet子类中，一般需要重载父类的( )方法来完成一些画图操作。 A. start( ) B. s
Copyright iv Deitel® Books, Cyber Classrooms, Complete Training Courses and Web-Based Training Courses published by Prentice Hall ii Preface xxv Features in Java How to Program, 6/e xxvi Teaching Approach xxix Tour of the Book xxxiii A Tour of the O
list map转换json格式数据以及相关的jar包 list转换后格式： [{"address":"广东省惠州","name":"tom","id":1,"age":23},{"address":"广东省深圳市","name":"jone","id":2,"age":84}] m ap转换后格式： {"address":"广东省惠州","name":"tom","id":1,"age":23} ...展开收缩
