JAVA反映练手

import java.util.List;
import java.util.ArrayList;
import java.lang.reflect.Method;
import java.lang.reflect.Field;

class S {
    private String name;
    private int age;
    
    public void setName(String name) {
        this.name = name;
    }
    public String getName() {
        return this.name;
    }
}

public class RefTest {  
    public static void main(String[] args) {  
        try {
            Class cls = Class.forName("S");
            boolean b1 = cls.isInstance(new Integer(37));
            System.out.println(b1);
            boolean b2 = cls.isInstance(new S());
            System.out.println(b2);
        } catch (Throwable e) {
            System.err.println(e);
        }
        
        try {
            Class cls = Class.forName("S");
            getProperty(cls);
        } catch (Throwable e) {
            System.err.println(e);
        }
        
        try {
            Class cls = Class.forName("S");
            getMethods(cls);
        } catch (Throwable e) {
            System.err.println(e);
        }
        
    }  
    
    public static Field[] getProperty(Class ownerClass) throws Exception {
        Field[] fields = ownerClass.getDeclaredFields();
        
        for (int i=0; i<fields.length; i++) {
            System.out.println("Property: " + fields[i]);
        }
        
        return fields;
    }
    
    public static Method[] getMethods(Class ownerClass) throws Exception {
        Method[] methods = ownerClass.getDeclaredMethods();
        
        for (int i=0; i<methods.length; i++) {
            System.out.println("Method: " + methods[i]);
        }
        
        return methods;
    }
}