Example usage for java.lang Object toString

Introduction

In this page you can find the example usage for java.lang Object toString.

Prototype

public String toString()

Source Link

Document

Returns a string representation of the object.

Usage

From source file:Main.java

public static String getRequestParamValue(Object obj, String charset) {
    if (obj == null) {
        return "";
    }/*from  ww  w .ja  v  a 2  s .c  om*/
    String value;

    if (obj instanceof List) {
        StringBuilder sb = new StringBuilder();
        if (obj != null) {
            for (Object o : (List<?>) obj) {
                if (o != null) {
                    sb.append(o.toString());
                    sb.append(',');
                }
            }
        }
        if (sb.length() > 0) {
            sb.deleteCharAt(sb.length() - 1);
        }
        value = sb.toString();
    }

    else {
        value = obj.toString();
    }

    try {
        return URLEncoder.encode(value, charset);
    } catch (UnsupportedEncodingException e) {
        return value;
    }
}

From source file:com.qwazr.utils.ArrayUtils.java

public static String[] toStringArray(Collection<Object> collection) {
    if (collection == null)
        return null;
    String[] array = new String[collection.size()];
    int i = 0;/*  w ww  .  ja va2s .  co m*/
    for (Object val : collection)
        array[i++] = val == null ? null : val.toString();
    return array;
}

From source file:com.mseeworld.qzh.util.Debug.java

/**
 * ?/*from   www .  j  av  a2  s.  c  o  m*/
 * @param objects
 * @date    2013-5-8
 */
public static final void printf(String msg, Object... objects) {
    if (ArrayUtils.isEmpty(objects)) {
        System.out.println(msg);
        return;
    }
    for (int i = 0, len = objects.length; i < len; i++) {
        Object obj = objects[i];
        msg = msg.replaceFirst("\\{\\}", obj == null ? "" : obj.toString());
    }
    System.out.println(msg);
}

From source file:Main.java

public static <T> T castObjectOrThrow(Object o, Class<T> clazz) {
    try {/*from   ww w.  jav  a 2s  . co m*/
        return clazz.cast(o);
    } catch (ClassCastException e) {
        throw new ClassCastException(o.toString() + " must implement " + clazz.getSimpleName());
    }
}

From source file:Main.java

/**
 *  /*from   w  w w .j  ava  2 s .  co m*/
 * @param json
 * @param key
 * @param defaultString
 * @return
 */
public static String getJsonString(JSONObject json, String key, String defaultString) {
    Object value = getJsonValue(json, key, defaultString);
    String string = (value == null) ? ("") : (value.toString());
    return string;
}

From source file:Main.java

/**
 * Mocks the test coverage for enums that generate the values and valueOf methods. This
 * is needed to get 100% on code coverage with Jacoco on those methods that are created synthetically.
 *
 * @param enumClass The enum class to partially test cover.
 *//*  ww w . j  a  va 2 s . com*/
public static void shallowEnumCodeCoverage(Class<? extends Enum<?>> enumClass) {
    try {
        for (Object object : (Object[]) enumClass.getMethod("values").invoke(null)) {
            enumClass.getMethod("valueOf", String.class).invoke(null, object.toString());
        }
    } catch (Throwable e) {
        throw new RuntimeException(e);
    }
}

From source file:Main.java

/**
 * Returns the {@value #BLUEPRINT_HEADER} if present from the given dictionary.
 * //from  w  w  w  .  ja v a 2  s .c  o m
 * @param headers
 * @return
 */
public static String getBlueprintHeader(Dictionary headers) {
    Object header = null;
    if (headers != null)
        header = headers.get(BLUEPRINT_HEADER);
    return (header != null ? header.toString().trim() : null);
}

From source file:czlab.xlib.CU.java

public static String nsb(Object x) {
    return x == null ? "" : x.toString();
}

From source file:com.threewks.thundr.view.jsp.el.StringFunctions.java

public static List<String> split(Object arg, String regex) {
    return arg == null ? Collections.<String>emptyList()
            : Arrays.asList(arg.toString().split(regex == null ? "\\s+" : regex));
}

From source file:Main.java

/**
 * Returns a list of strings from al collection of arbitrary objects.
 *
 * Uses the <code>toString()</code> operation of every collection element.
 * Null elements set to null in the list.
 *
 * @param  coll collection/*ww w. j  av  a2 s. c o  m*/
 * @return      list of strings
 */
public static List<String> toStringList(Collection<?> coll) {
    if (coll == null) {
        throw new NullPointerException("coll == null");
    }

    List<String> list = new ArrayList<>(coll.size());

    for (Object o : coll) {
        if (o == null) {
            list.add(null);
        } else {
            list.add(o.toString());
        }
    }

    return list;
}