通过class实例取得类的接口,父类,构造器
interface China {
public static final String NATIONAL = "JAPAN";
public static final String AUTHOR = "SIGERU";
public void sayJapan();
public String sayHello(String name, int age);
}
public class PersonZ implements China {
private String name;
private int age;
public PersonZ() {
}
public PersonZ(String name, int age) {
this(name);
this.setAge(age);
}
public PersonZ(String name) {
super();
this.name = name;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
@Override
public void sayJapan() {
System.out.println("AUTHOR:" + AUTHOR + ",COUNTRY:" + NATIONAL);
}
@Override
public String sayHello(String name, int age) {
return name + ",Hello! I AM " + age + "NOW!";
}
}
import java.lang.reflect.Constructor;
import java.lang.reflect.Modifier;
public class GetInterfaceDemo {
public static void main(String[] args) {
Class<?> c1 = null;
String path = PersonZ.class.getName();
try {
c1 = Class.forName(path);
} catch (ClassNotFoundException e) {
e.printStackTrace();
}
Class<?> c[] = c1.getInterfaces();
Constructor<?> con[] = c1.getConstructors();
for (int i = 0; i < c.length; i++) {
System.out
.println("THe interface implemented is:" + c[i].getName());
}
for (int i = 0; i < con.length; i++) {
Class<?> p[] = con[i].getParameterTypes();
System.out.print("The constructor is:"
+ Modifier.toString(con[i].getModifiers()) + " " //使用modifier还原修饰符
+ con[i].getName());
System.out.print("(");
for (int j = 0; j < p.length; j++) {
System.out.print(p[j].getName() + "arg" + i);
if (j < p.length - 1) {
System.out.print(",");
}
}
System.out.println("){}");
}
System.out.println("The superclass extended is:"
+ c1.getSuperclass().getName());
}
}
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