ClassUtils.java

package com.helloiampau.miscs;

import java.util.HashMap;

class ClassContainer extends HashMap<String, Object> {
  private final String CLASS = "class";
	private final String SUPERCLASS = "superclass";
	private final String INTERFACES = "interfaces";
	
	public void putObjectClass(Class c) {
		this.put(this.CLASS, c);
	}
	
	public Class getObjectClass() {
		return (Class)(this.get(this.CLASS));
	}
	
	public void putObjectSuperclass(Class c) {
		this.put(this.SUPERCLASS, c);
	}
	
	public Class getObjectSuperclass() {
		return (Class)(this.get(this.SUPERCLASS));
	}
	
	public void putObjectInterfaces(Class[] cs) {
		this.put(this.INTERFACES, cs);
	}
	
	public Class[] getObjectInterfaces() {
		return (Class[])(this.get(this.INTERFACES));
	}
	
}

public class ClassUtils {
	
	public static ClassContainer whoExtendsAndImplements(Object o) {
		ClassContainer container = new ClassContainer();
		
		// Getting current object class
		Class currentObjectClass = o.getClass();
		container.putObjectClass(currentObjectClass);
		
		// Getting current object superclass
		Class currentObjectSuperclass = currentObjectClass.getSuperclass();
		container.putObjectSuperclass(currentObjectSuperclass);
		
		// Getting current object interfaces
		Class[] currentObjectInterfaces = currentObjectClass.getInterfaces();
		container.putObjectInterfaces(currentObjectInterfaces);
		
		return container;
	}
	
	public static void main(String[] args) {
		
		String testObject = new String("Cacca");
		ClassContainer cc = ClassUtils.whoExtendsAndImplements(testObject);
		
		System.out.println("This object class: " + cc.getObjectClass().toString());
		System.out.println("This object superclass: " + cc.getObjectSuperclass().toString());
		System.out.println("This object Interfaces: ");
		for(Class c : cc.getObjectInterfaces())
			System.out.println(c.toString());

	}

}