• 2022-06-08 问题

    下列选项中不属于MouseListener接口的方法是() A: mouseDragged B: mousePressed C: mouseClicked D: mouseEntered

    下列选项中不属于MouseListener接口的方法是() A: mouseDragged B: mousePressed C: mouseClicked D: mouseEntered

  • 2022-07-25 问题

    在MouseListener中,负责处理鼠标进入组件操作的方法是( )。 A: mouseClicked B: mousePressed C: mouseEntered D: mouse

    在MouseListener中,负责处理鼠标进入组件操作的方法是( )。 A: mouseClicked B: mousePressed C: mouseEntered D: mouse

  • 2022-05-29 问题

    下列______方法属于MouseMotionListener接口中的方法。 A: mouseExited(MouseEven B: mouseEntered(MouseEven C: mouseMoved(MouseEven D: mousePressed(MouseEven

    下列______方法属于MouseMotionListener接口中的方法。 A: mouseExited(MouseEven B: mouseEntered(MouseEven C: mouseMoved(MouseEven D: mousePressed(MouseEven

  • 2022-05-29 问题

    下列______方法属于MouseMotionListener接口中的方法。 A: mouseExited(MouseEvent) B: mouseEntered(MouseEvent) C: mouseMoved(MouseEvent) D: mousePressed(MouseEvent)

    下列______方法属于MouseMotionListener接口中的方法。 A: mouseExited(MouseEvent) B: mouseEntered(MouseEvent) C: mouseMoved(MouseEvent) D: mousePressed(MouseEvent)

  • 2022-05-28 问题

    处理鼠标事件时,通过方法将监-听-器绑定到事件源对象() A: mousePressed B: addMouseListener C: mouseEntered D: mouseClicked

    处理鼠标事件时,通过方法将监-听-器绑定到事件源对象() A: mousePressed B: addMouseListener C: mouseEntered D: mouseClicked

  • 2022-06-07 问题

    下列方法中,没有定义在处理鼠标事件MouseEvent的监听器接口MouseListener中的方法是( )。 A: mouseClicked( ) B: mouseEntered( ) C: mouseReleased( ) D: mouseMoved( )

    下列方法中,没有定义在处理鼠标事件MouseEvent的监听器接口MouseListener中的方法是( )。 A: mouseClicked( ) B: mouseEntered( ) C: mouseReleased( ) D: mouseMoved( )

  • 2022-06-06 问题

    1在组件上单击(按下鼠标并释放)时,会调用的鼠标处理方法是() A: mouseReleased(MouseEvente) B: mouseClicked(MouseEvent e) C: mouseEntered(MouseEvent e) D: mouseReleased(MouseEvente)

    1在组件上单击(按下鼠标并释放)时,会调用的鼠标处理方法是() A: mouseReleased(MouseEvente) B: mouseClicked(MouseEvent e) C: mouseEntered(MouseEvent e) D: mouseReleased(MouseEvente)

  • 2022-07-23 问题

    当鼠标进入应用程序的窗口时,所调用的鼠标事件的方法是() A: public void mouseEntered( MouseEvent ) B: public void mousePressed( MouseEvent ) C: public void mouseMoved( MouseEvent ) D: public void mouseExited( MouseEvent )

    当鼠标进入应用程序的窗口时,所调用的鼠标事件的方法是() A: public void mouseEntered( MouseEvent ) B: public void mousePressed( MouseEvent ) C: public void mouseMoved( MouseEvent ) D: public void mouseExited( MouseEvent )

  • 2022-06-26 问题

    在Java语言中,你的按钮要实现下面的功能: 当鼠标按下按钮时,显示"鼠标已按下";当释放按键时,显示"鼠标已释放"。你必须具体定义下列接口MouseListener的()方法。 A: mouseClicked B: mouseEntered C: mouseExited D: mousePressed E: mouseReleaseed

    在Java语言中,你的按钮要实现下面的功能: 当鼠标按下按钮时,显示"鼠标已按下";当释放按键时,显示"鼠标已释放"。你必须具体定义下列接口MouseListener的()方法。 A: mouseClicked B: mouseEntered C: mouseExited D: mousePressed E: mouseReleaseed

  • 2021-04-14 问题

    分析下列程序,写出其功能。 import java.applet.*; import java.awt.*; import java.awt.event.*; public class Test extends Applet implements MouseListener { final int number = 5; int count = 0; Image[] card = new Image[number]; public void init() { setSize(1200,1000); addMouseListener(this); for (int i = 0; i < number; i++) { card[i] = getImage(getCodeBase(), i+".jpg"); } } public void paint(Graphics g) { if ((card[count]) != null) g.drawImage(card[count], 10,10,card[count].getWidth(this),card[count].getHeight(this), this); } public void mousePressed(MouseEvent e) { count = (count + 1) % number; repaint(); } public void mouseReleased(MouseEvent e) {} public void mouseEntered(MouseEvent e) {} public void mouseExited(MouseEvent e) {} public void mouseClicked(MouseEvent e) {} }

    分析下列程序,写出其功能。 import java.applet.*; import java.awt.*; import java.awt.event.*; public class Test extends Applet implements MouseListener { final int number = 5; int count = 0; Image[] card = new Image[number]; public void init() { setSize(1200,1000); addMouseListener(this); for (int i = 0; i < number; i++) { card[i] = getImage(getCodeBase(), i+".jpg"); } } public void paint(Graphics g) { if ((card[count]) != null) g.drawImage(card[count], 10,10,card[count].getWidth(this),card[count].getHeight(this), this); } public void mousePressed(MouseEvent e) { count = (count + 1) % number; repaint(); } public void mouseReleased(MouseEvent e) {} public void mouseEntered(MouseEvent e) {} public void mouseExited(MouseEvent e) {} public void mouseClicked(MouseEvent e) {} }

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