// 对overload测试的文件：OverloadTest.java public class OverloadTest { // 下面几个方法用来验证可以通过定义不同的参数类型和参数的数目进行方法重载。 public void fun(){ System.out.println("method fun in OverloadTest, no parameter"); } public void fun(float f) { System.out.println("method fun in
3、以执行下题,将打印出什么? 父类： package test; public class FatherClass { public FatherClass() { System.out.println("FatherClass Create"); } } 子类: package test; import test.FatherClass; public class ChildClass extends FatherClass { public ChildClass() { System.o
一、 选择 1.MAX_LENGTH是int型public成员变量, 变量值保持为常量100，用简短语句定义这个变量。 A public int MAX_LENGTH=100; B final int MAX_LENGTH=100; C final public int MAX_LENGTH=100; D public final int MAX_LENGTH=100. 2.给出下面代码： 1) class Parent { 2) private String name; 3) p
import java.awt.*; import java.awt.event.*; import javax.swing.*; import java.sql.*; public class system extends JFrame { JDesktopPane deskpane = new JDesktopPane();//在窗体里建立虚拟桌 JPanel p = new JPanel();//创建一个面板并实例化 public system(){//构造函数 setTitle("订单
package com.hexiang.utils; import java.awt.Component; import javax.swing.JOptionPane; /** * This class ExceptionManager and its subclasses are a form of * Exception. It is used to wrap all the Throwable instances * and handle them in a unified way.
/* * Copyright (c) 2000 David Flanagan. All rights reserved. * This code is from the book Java Examples in a Nutshell, 2nd Edition. * It is provided AS-IS, WITHOUT ANY WARRANTY either expressed or implied. * You may study, use, and modify it for any
