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public class  MyList{
      private Element header;
      public MyList(){}
      public MyList(Object o){
          header = new Element();
          header.setValue(o);
          header.setNext(null);
      }
      // ÆäËû²Ù×÷¶¼ºÜÀàËÆ£¬Ö»Ð´³öÌí¼ÓÔªËØµÄ·½·¨
      public void add(Object o){
           Element temp = header;
           if(temp==null){
                header = new Element();
                header.setValue(o);
                header.setNext(null);
            }else{
                while(temp.getNext()!=null){
                     temp=temp.getNext();
                 }
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import java.awt.Image;
import java.awt.Point;
import java.awt.Toolkit;
import java.awt.image.MemoryImageSource;
import javax.swing.JFrame;
public class HideCursor extends JFrame {
 HideCursor() {
  this.setBounds(300, 300, 300, 300);
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