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import java.awt.*; import java.applet.*; public class ButtonDemo extends Applet{ public void init() { Button pushBotton=new Button(“ok”); Button downBotton=new Button(“Yes”); add(pushBotton); add(downBotton); } } 根据以上代码,下列结束正确的是()
- A、该代码画了一个按钮
- B、Button(“ok”)创建一个有显示”ok”的按钮
- C、Button()是构造函数
- D、按钮属于容器
参考答案
更多 “ import java.awt.*; import java.applet.*; public class ButtonDemo extends Applet{ public void init() { Button pushBotton=new Button(“ok”); Button downBotton=new Button(“Yes”); add(pushBotton); add(downBotton); } } 根据以上代码,下列结束正确的是()A、该代码画了一个按钮B、Button(“ok”)创建一个有显示”ok”的按钮C、Button()是构造函数D、按钮属于容器” 相关考题
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考题
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考题
What will be the appearance of an applet with the following init() method? public void init() { add(new Button("hello")); } A、Nothing appears in the applet.B、A button will cover the whole area of the applet.C、A button will appear in the top left corner of the applet.D、A button will appear, centered in the top region of the applet.E、A button will appear in the center of the applet.
考题
import java.awt.*; import java.applet.*; public class ButtonDemo extends Applet{ public void init(){ Button pushButton=new Button(“ok”); Button downButton=new Button(“Yess”); add(pushButton); add(downButton); } } 根据以上代码,下列解释正确的是() A、该代码画了一个按钮B、Button(“ok”)创建了一个有显示“ok”的按钮C、Button()是构造函数D、按钮属于容器
考题
Given the following code, which code fragments, when inserted at the indicated location, will succeed in making the program display a button spanning the whole window area?() import java.awt.*; public class Q1e65 { public static void main(String args[]) { Window win = new Frame(); Button but = new Button("button"); // insert code fragment here win.setSize(200, 200); win.setVisible(true); } } A、win.setLayout(new BorderLayout()); win.add(but);B、win.setLayout(new GridLayout(1, 1)); win.add(but);C、win.setLayout(new BorderLayout()); win.add(but, BorderLayout.CENTER);D、win.add(but);E、win.setLayout(new FlowLayout()); win.add(but);
考题
import java.awt.*; public class X extends Frame { public static void main (String args) { X x = new X(); x.pack(); x.setVisible(true); } public X() { setLayout (new BordrLayout()); Panel p = new Panel (); add(p, BorderLayout.NORTH); Button b = new Button (“North”); p.add(b): Button b = new Button (“South”); add(b1, BorderLayout.SOUTH): } } Which two statements are true?()A、 The buttons labeled “North” and “South” will have the same width.B、 The buttons labeled “North” and “South” will have the same height.C、 The height of the button labeled “North” can very if the Frame is resized.D、 The height of the button labeled “South” can very if the Frame is resized.E、 The width of the button labeled “North” is constant even if the Frame is resized.F、 The width of the button labeled “South” is constant even if the Frame is resized.
考题
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考题
import java.awt*; public class X extends Frame ( public static void main(string args) ( X x = new X (); X.pack(); x.setVisible(true); ) public X () ( setlayout (new GridLayout (2,2)); Panel p1 = new panel(); Add(p1); Button b1= new Button (“One”); P1.add(b1); Panel p2 = new panel(); Add(p2); Button b2= new Button (“Two”); P2.add(b2); Button b3= new Button (“Three”); add(b3); Button b4= new Button (“Four”); add(b4); ) ) Which two statements are true? ()A、 All the buttons change height if the frame height is resized.B、 All the buttons change width if the Frame width is resized.C、 The size of the button labeled “One” is constant even if the Frame is resized.D、 Both width and height of the button labeled “Three” might change if the Frame is resized.
考题
多选题import java.awt.*; import java.applet.*; public class ButtonDemo extends Applet{ public void init(){ Button pushButton=new Button(“ok”); Button downButton=new Button(“Yess”); add(pushButton); add(downButton); } } 根据以上代码,下列解释正确的是()A该代码画了一个按钮BButton(“ok”)创建了一个有显示“ok”的按钮CButton()是构造函数D按钮属于容器
考题
多选题import java.awt.*; import java.applet.*; public class ButtonDemo extends Applet{ public void init() { Button pushBotton=new Button(“ok”); Button downBotton=new Button(“Yes”); add(pushBotton); add(downBotton); } } 根据以上代码,下列结束正确的是()A该代码画了一个按钮BButton(“ok”)创建一个有显示”ok”的按钮CButton()是构造函数D按钮属于容器
考题
多选题import java.awt.*; import java.applet.*; public class ButtonDemo extends Applet{ public void init() { Button pushBotton=new Button("ok"); Button downBotton=new Button("Yes"); add(pushBotton); add(downBotton); } } 根据以上代码,下列解释正确的是()。A该代码画了一个按钮BButton(ok)创建一个有显示ok的按钮CButton()是构造函数D按钮属于容器
考题
单选题What will be the appearance of an applet with the following init() method? public void init() { add(new Button("hello")); }A
Nothing appears in the applet.B
A button will cover the whole area of the applet.C
A button will appear in the top left corner of the applet.D
A button will appear, centered in the top region of the applet.E
A button will appear in the center of the applet.
考题
单选题import java.awt.*; public class Test extends Frame { public Test() { add(new Label(“Hello”) ); add(new TextField(“Hello”) ); add(new Button(“Hello”) ); pack(); show(); } public static void main(String args) { new Test (); } } What is the result? ()A
The code will not compile.B
A Window will appear containing only a Button.C
An IllegalArgumentException is thrown at line 6.D
A Window button will appear but will not contain the Label, TextField, or Button.E
A Window will appear containing a Label at the top, a TextField below the Label, and a Button below the TextField.F
A Window will appear containing a Label on the left, a TextField to the right of the Label, and a button to the right of the TextField.
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