问答题New有种用法?
问答题
New有种用法?
参考解析
解析:
暂无解析
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下列哪些代码段是正确的?() A.X x=new X();Y y=new Y();Z z=new Z();y=(Y)x;B.X x=new X();Y y=new Y();Z z=new Z();x=(X)y;C.X x=new X();Y y=new Y();Z z=new Z();Z=(Z)x;D.X x=new X();Y y=new Y();Z z=new Z();W w=(W)x;
本题中,用表格表现某个月的月历,其中标题是从Sunday到Saturday,表格中的各项是可以修改的。 import java.awt.*; import java.awt.event.*; import javax.swing.*; import javax.swing.table.*; public class java2 ( public static void main(String[]args) { try{ UIManager.setLookAndFeel(UIManager.getSys- temLookAndFeelClassName): } catch(Exception e) JFrame. frame=new CalendarTableFrame; frame.setDefaultCloseOperation(JFrame.EXIT_ oN CLOSE); frame.show; } } clasgCalendarTableFrame. extends JFrame { private static final int WIDTH=500; private static final int HEIGHT=150: private cells= { {null,null,null,new Integer(1),new Integer (2),new Integer(3),new Integer(4)), {new Integer(5),new Integer(6),new Integer (7).new Integer(8),new Integer(9),new Integer (10),new Integer(11)), {new Integer(12),new Integer(13),new Integer (14),new Integer(15),new Integer(16),new Integer (17),new Integer(18)), {new Integer(19),new Integer(20),new Integer (21),new Integer(22),new Integer(23),new Integer (24),new Integer(25)), {new Integer(26),new Integer(27),new Integer (28),new Integer(29),new Integer(30),new Integer (31),null} }; private String[]columnNames={ "Sunday","Monday","Tuesday","Wednesday", "Thursday","Friday","Saturday" }; public CalendarTableFrame{ setTitle("java2"); setSize(WIDTH,HEIGHT); JTable table=new ; getContentPane.add(new JScrollPane(table), BorderLayout.CENTER); } }
下列说法正确的是A、ANA无器官特异性,有种属特异性B、ANA无器官特异性,无种属特异性C、ANA有器官特异性,无种属特异性D、ANA器官特异性,有种属特异性E、ANA有器官特异性,有种属特异性
在J2ee中,以下各项中,()正确阐述了创建InputStreamReader的方式。 A、new InputStreamReader(new FileInputStream("data"));B、new InputStreamReader(new FileReader"data"));C、new InputStreamReader(new BufferedReader("data"));D、new FileInputStream("data")
J2EE中,以下各项中,()正确阐述了创建InputStreamReader的方式。A、new InputStreamReader(new FileInputSteream(“data”));B、new InputStreamReader(new FileFileReader (“data”));C、new InputStreamReader(new BufferedReader(“data”));D、new InputStreamReader(“data”);
Which constructs a DataOutputStream?() A、 New dataInputStream(“in.txt”);B、 New dataInputStream(new file(“in.txt”));C、 New dataInputStream(new writer(“in.txt”));D、 New dataInputStream(new FileWriter(“in.txt”));E、 New dataInputStream(new InputStream(“in.txt”));F、 New dataInputStream(new FileInputStream(“in.txt”));
Which constructs a BufferedIputStream?()A、 New BufferedInputStream(“in.txt”);B、 New BufferedInputStream(new File(“in.txt”));C、 New BufferedInputStream(Writer(“in.txt”));D、 New BufferedInputStream(new Writer(“in.txt”));E、 New BufferedInputStream(new InputStream(“in.txt”));F、 New BufferedInputStream(new FileInputStream(“in.txt”));
有人给农业种子公司寄了封信,要求公司寄一些无籽西瓜的种子来。为此,甲、乙、丙三人议论起来: 甲:“简直是无稽之谈,无籽西瓜怎么会有种子,这不是自相矛盾吗?” 乙:“凡是植物都有种子,西瓜是植物,西瓜也肯定有种子;无籽西瓜是西瓜,所以无籽西瓜也有种子。这是逻辑推理的结论。但又如甲所说的,认为无籽西瓜有种子是不合逻辑的,因为无籽西瓜一颗籽也没有,事实上也是没有种子的。所以,逻辑和事实是两回事。” 丙:“无籽西瓜当然有种子,这是不存在什么逻辑矛盾的。如果从无籽西瓜中直接取种当然不可能,但是可以通过别的途径取得无籽西瓜的种子。认为无籽西瓜没有种子,在逻辑上才是混乱的。”甲、乙、丙三人谁讲得对?谁讲得不对?简述理由。
Which constructs a DataOutputStream?()A、 New dataOutputStream(“out.txt”);B、 New dataOutputStream(new file(“out.txt”));C、 New dataOutputStream(new writer(“out.txt”));D、 New dataOutputStream(new FileWriter(“out.txt”));E、 New dataOutputStream(new OutputStream(“out.txt”));F、 New dataOutputStream(new FileOutputStream(“out.txt”));
单选题Which constructs a DataOutputStream?()A New dataOutputStream(“out.txt”);B New dataOutputStream(new file(“out.txt”));C New dataOutputStream(new writer(“out.txt”));D New dataOutputStream(new FileWriter(“out.txt”));E New dataOutputStream(new OutputStream(“out.txt”));F New dataOutputStream(new FileOutputStream(“out.txt”));
单选题Which constructs a BufferedIputStream?()A New BufferedInputStream(“in.txt”);B New BufferedInputStream(new File(“in.txt”));C New BufferedInputStream(Writer(“in.txt”));D New BufferedInputStream(new Writer(“in.txt”));E New BufferedInputStream(new InputStream(“in.txt”));F New BufferedInputStream(new FileInputStream(“in.txt”));
单选题Which constructs a DataOutputStream?()A New dataInputStream(“in.txt”);B New dataInputStream(new file(“in.txt”));C New dataInputStream(new writer(“in.txt”));D New dataInputStream(new FileWriter(“in.txt”));E New dataInputStream(new InputStream(“in.txt”));F New dataInputStream(new FileInputStream(“in.txt”));
名词解释题稀有种