import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.lang.reflect.Modifier;
public class ReflectionTest {
public static void main(String[] args) {
Class c=null;
try {
c=Class.forName("java.lang.String");
System.out.println("package "+c.getPackage().getName()+";");
System.out.print(Modifier.toString(c.getModifiers()));
System.out.print(" class "+c.getSimpleName());
System.out.print(" extends "+c.getSuperclass().getName());
Class[] inters=c.getInterfaces();
if(inters.length>0){
System.out.print(" implements ");
for(int i=0;i<inters.length;i++){
System.out.print(inters[i].getName());
if(i<inters.length-1){
System.out.print(",");
}
}
}
System.out.println("{");
System.out.println("//以下是屬性定義");
printFields(c);
System.out.println("//以下是方法定義");
printMethods(c);
System.out.println("}");
} catch (ClassNotFoundException e) {
e.printStackTrace();
}
}
private static void printFields(Class c){
Field[] fs=c.getDeclaredFields();
for(int i=0;i<fs.length;i++){
System.out.print("\t");
System.out.print(Modifier.toString(fs[i].getModifiers())+" ");
System.out.print(fs[i].getType().getSimpleName()+" ");
System.out.println(fs[i].getName()+";");
}
}
public static void printMethods(Class c){
Method[] ms=c.getDeclaredMethods();
for(int i=0;i<ms.length;i++){
System.out.print("\t");
System.out.print(Modifier.toString(ms[i].getModifiers())+" ");
System.out.print(ms[i].getReturnType().getSimpleName()+" ");
System.out.print(ms[i].getName()+"(");
Class[] paras=ms[i].getParameterTypes();
for(int j=0;j<paras.length;j++){
System.out.print(paras[j].getSimpleName()+" arg"+j);
if(j<paras.length-1){
System.out.print(",");
}
}
System.out.print(")");
Class[] exceps=ms[i].getExceptionTypes();
if(exceps.length>0){
System.out.print(" throws ");
for(int k=0;k<exceps.length;k++){
System.out.print(exceps[k].getSimpleName());
if(k<exceps.length-1){
System.out.print(",");
}
}
}
System.out.println("{");
System.out.println("\t\t... ...");
System.out.println("\t}");
System.out.println();
}
}
}