泛型类Point使用演示

package _5_28;

 

public class GeneDemo {

public static void main(String[] args) {

// Example of generic class

Point<Integer, Integer> p1 = new Point<Integer, Integer>();

p1.setX(10);

p1.setY(20);

int x = p1.getX();

int y = p1.getY();

System.out.println("This point is: " + x + "," + y);

 

Point<Double, String> p2 = new Point<Double, String>();

p2.setX(25.4);

p2.setY("东经 180 度");

double m = p2.getX();

String n = p2.getY();

System.out.println("This point is: " + m + "," + n);

}

}

package _5_28;

 

 

class Point<T1, T2> {

T1 x;

T2 y;

 

public T1 getX() {

return x;

}

 

public void setX(T1 x) {

this.x = x;

}

 

public T2 getY() {

return y;

}

 

public void setY(T2 y) {

this.y = y;

}

}