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import java.awt.*; import java.applet.*; import javax.swing.*; import java.util.Date; public class clock extends Applet implements Runnable{ public final double Ro=100.0d; public final d
import java.applet.*; import java.awt.*; public class Exercise7_1_2 extends Applet { public final double R=150.0f; int x[]=new int [10],y[]=new int[10],i; double dx[]=new double[10],dy[]
import java.applet.*; import java.awt.*; public class Exercise7_1 extends Applet{//只画出五个点 public final double R=150.0f; int x[]=new int [5],y[]=new int[5],i; public void init(){
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