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创建一个称为FourDPoint的三维点的类,该类是java.awt包中Point的子类。
import java.awt.Point; /** from N o w J a v a . c o m**/ public class Main{ public static void main(String[] arguments) { FourDPoint np = new FourDPoint(5, 5, 4, 100); System.out.println("x is " + np.x); System.out.println("y is " + np.y); System.out.println("z is " + np.z); System.out.println("t is " + np.t); } } class FourDPoint extends Point { int z; int t; FourDPoint(int x, int y, int inZ, int inT