浙大JAVA复习提纲 知识点提炼 充分必备review2.docVIP

Academic Honesty plays a key role in our efforts to maintain a high standard of academic excellence and integrity. Students are advised that ALL acts of intellectual dishonesty are subject to disciplinary action by Zhejiang Univ.. PAGE 10 Academic Honesty plays a key role in our efforts to maintain a high standard of academic excellence and integrity. Students are advised that ALL acts of intellectual dishonesty are subject to disciplinary action by Zhejiang Univ.. PAGE 11 2. Given: Integer.valueOf(1).equals(Long.valueOf(1)) which statement below is right? It doesn’t compile. The value is true. The value is false. It throws exception in run-time. 3. What best describes the appearance of an application with the following code? public class FlowAp extends Frame{ public static void main(String argv[]){ FlowAp fa=new FlowAp(); fa.setSize(400,300); fa.setVisible(true); } FlowAp(){ add(new Button(One)); add(new Button(Two)); add(new Button(Three)); add(new Button(Four)); } } A. A Frame with buttons marked One to Four placed on each edge. B. A Frame with buutons marked One to four running from the top to bottom C. A Frame with one large button marked Four in the Centre D. An Error at run time indicating you have not set a LayoutManager 4. What will happen when you attempt to compile and run the following code? public class Bground extends Thread{ public static void main(String argv[]){ Bground b = new Bground(); b.run(); } public void start(){ for (int i = 0; i 10; i++){ System.out.println(Value of i = + i); } } } A compile time error indicating that no run method is defined for the Thread class A run time error indicating that no run method is defined for the Thread class Clean compile and at run time the values 0 to 9 are printed out Clean compile but no output at runtime 5. Given: class Century implements R