ToStringUtil.java

package dasniko.util;

import java.lang.reflect.Field;
import java.lang.reflect.Modifier;

/**
 * @author Niko Köbler, https://www.n-k.de, @dasniko
 */
public class ToStringUtil {

  public static String toString(Object object) {
    if (object == null) return "null";

    Class<?> clazz = object.getClass();
    StringBuilder sb = new StringBuilder(clazz.getSimpleName()).append("(");

    while (clazz != null && !clazz.equals(Object.class)) {
      Field[] fields = clazz.getDeclaredFields();
      for (Field f : fields) {
        if (!Modifier.isStatic(f.getModifiers())) {
          try {
            f.setAccessible(true);
            sb.append(f.getName()).append("=").append(f.get(object)).append(", ");
          } catch (IllegalAccessException e) {
            e.printStackTrace();
          }
        }
      }
      clazz = clazz.getSuperclass();
    }

    sb.deleteCharAt(sb.lastIndexOf(", "));
    return sb.append(")").toString();
  }
}