问题:Servlet A receives&en...
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问题:现有: 1. class Book { 2. private final void read() { System.out.print("book "); } 3. } 4. class Page extends Book { 5. public static void main(String [] args) { 6. // insert code here 7. } 8. private final void read() { Syst...
问题:Given a correctly compiled class whose source code is: package com.sun.sjcp; public class Commander { public static void main(String[] args) { // more code here } } Assume that the class file is located in /foo/com/sun/sjcp/, the current directory ...
问题:1. class A {&ens...
问题:static void test() throws RuntimeException { try { System.out.print(”test “); throw new RuntimeException(); } catch (Exception ex) { System.out.print(”exception “); } } public static void main(String[] args) { try { test(); } catch (RuntimeExcept...
问题:Java中方法绑定有哪些形式?()A、编译时刻绑定B、运行时刻绑定C、静态绑定D、私有绑定...
问题:现有: class Thre...
问题:HTTP中的POST和GET在下列哪些方面有区别()。...
问题:A developer is d...
问题:现有: 1. interfa...
问题:以下有关接口的叙述错误的是哪项?() ...
问题:现有: public class Tester { public static void main (String[] args) { intx-5; Integer xl=x; Integer x2=x; int x3=new Integer(5); system..ut.print(x1.equals(x)); system..ut.print(xl==x); system..ut.print(x2.equals(xl)); system..ut.p...
问题:Which of the f...
问题:简单变量和引用变量在作为类的成员这是时,有什么区别() A、简单成员变量不需要初始化,引用变量需要在构造函数中初始化B、引用成员变量不需要初始化,简单成员变量需要在构造函数中初始化C、类的成员变量可以自动初始化,因此没有区别D、简单成员变量会自动初始化为默认值(0),而引用变量只会自动初始化为空值,实际使用时还需要将它指向一个对象...
问题:public class Test { public static void main (String args) { string foo = “blue”; string bar = foo; foo = “green”; System.out.printIn(bar); } } What is the result?() A、 An exception is thrown.B、 The code will not compile.C、 The program print...
问题:能够遍历泛型List〈Integer〉 al中的所有...
问题:What will be wri...
问题:下列哪项是String的字面量?() ...
问题:Given an EL fu...
问题:Which statements concerning the event model of the AWT are true?() A、At most one listener of each type can be registered with a component.B、Mouse motion listeners can be registered on a List instance.C、There exists a class named ContainerEvent in package...