Files
java-homework/实验3/src/test2/Circle.java
T

17 lines
326 B
Java
Executable File

//Circle.java
package test2;
public class Circle {
double radius;
double area;
public void set(double radius) {
this.radius = radius;
}
public void disaplay() {
area = radius * radius * 3.14;
System.err.println("This circle's radius is " + radius + ", area is " + area);
}
}