Mega Code Archive
Modifier
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import java.lang.reflect.Constructor;
import java.lang.reflect.Field;
import java.lang.reflect.Member;
import java.lang.reflect.Method;
import java.lang.reflect.Modifier;
public class Main{
public static void main(String[] args) throws ClassNotFoundException {
Class c = Class.forName(args[0]);
print_class(c);
}
public static void print_class(Class c) {
if (c.isInterface()) {
System.out.print(Modifier.toString(c.getModifiers()) + " " + typename(c));
} else if (c.getSuperclass() != null) {
System.out.print(Modifier.toString(c.getModifiers()) + " class " + typename(c) + " extends "
+ typename(c.getSuperclass()));
} else {
System.out.print(Modifier.toString(c.getModifiers()) + " class " + typename(c));
}
Class[] interfaces = c.getInterfaces();
if ((interfaces != null) && (interfaces.length > 0)) {
if (c.isInterface())
System.out.print(" extends ");
else
System.out.print(" implements ");
for (int i = 0; i < interfaces.length; i++) {
if (i > 0)
System.out.print(", ");
System.out.print(typename(interfaces[i]));
}
}
System.out.println(" {");
Constructor[] constructors = c.getDeclaredConstructors();
for (int i = 0; i < constructors.length; i++)
print_method_or_constructor(constructors[i]);
Field[] fields = c.getDeclaredFields();
for (int i = 0; i < fields.length; i++){
print_field(fields[i]);
}
Method[] methods = c.getDeclaredMethods();
for (int i = 0; i < methods.length; i++)
print_method_or_constructor(methods[i]);
System.out.println("}");
}
public static String typename(Class t) {
String brackets = "";
while (t.isArray()) {
brackets += "[]";
t = t.getComponentType();
}
String name = t.getName();
int pos = name.lastIndexOf('.');
if (pos != -1)
name = name.substring(pos + 1);
return name + brackets;
}
public static String modifiers(int m) {
if (m == 0)
return "";
else
return Modifier.toString(m) + " ";
}
public static void print_field(Field f) {
System.out.println(" " + modifiers(f.getModifiers()) + typename(f.getType()) + " "
+ f.getName() + ";");
}
public static void print_method_or_constructor(Member member) {
Class returntype = null, parameters[], exceptions[];
if (member instanceof Method) {
Method m = (Method) member;
returntype = m.getReturnType();
parameters = m.getParameterTypes();
exceptions = m.getExceptionTypes();
System.out.print(" " + modifiers(member.getModifiers()) + typename(returntype) + " "
+ member.getName() + "(");
} else {
Constructor c = (Constructor) member;
parameters = c.getParameterTypes();
exceptions = c.getExceptionTypes();
System.out.print(" " + modifiers(member.getModifiers()) + typename(c.getDeclaringClass())
+ "(");
}
for (int i = 0; i < parameters.length; i++) {
if (i > 0)
System.out.print(", ");
System.out.print(typename(parameters[i]));
}
System.out.print(")");
if (exceptions.length > 0)
System.out.print(" throws ");
for (int i = 0; i < exceptions.length; i++) {
if (i > 0)
System.out.print(", ");
System.out.print(typename(exceptions[i]));
}
System.out.println(";");
}
}
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