U.of(/* array | list | set | map | anything based on Iterable interface */)
.filter(..)
.map(..)
...
.sortWith()
.forEach(..);
U.of(value1, value2, value3)...
U.range(0, 10)...
U.of(1, 2, 3) // or java.util.Arrays.asList(1, 2, 3) or new Integer[] {1, 2, 3}
.filter(v -> v > 1)
// 2, 3
.map(v -> v + 1)
// 3, 4
.sortWith((a, b) -> b.compareTo(a))
.forEach(System.out::println);
// 4, 3U.of(1, 2, 3) // or java.util.Arrays.asList(1, 2, 3) or new Integer[] {1, 2, 3}
.mapMulti((num, consumer) -> {
for (inti = 0; i < num; i++) {
consumer.accept("a" + num);
}
})
.forEach(System.out::println);
// "a1", "a2", "a2", "a3", "a3", "a3"U.formatXml("<a><b>data</b></a>", Xml.XmlStringBuilder.Step.TWO_SPACES);
// <a>// <b>data</b>// </a>U.formatJson("{\"a\":{\"b\":\"data\"}}", Json.JsonStringBuilder.Step.TWO_SPACES);
// {// "a": {// "b": "data"// }// }U.xmlToJson(
"<mydocument has=\"an attribute\">\n"
+ " <and>\n"
+ " <many>elements</many>\n"
+ " <many>more elements</many>\n"
+ " </and>\n"
+ " <plus a=\"complex\">\n"
+ " element as well\n"
+ " </plus>\n"
+ "</mydocument>",
Json.JsonStringBuilder.Step.TWO_SPACES);
// {// "mydocument": {// "-has": "an attribute",// "and": {// "many": [// "elements",// "more elements"// ]// },// "plus": {// "-a": "complex",// "#text": "\n element as well\n "// }// },// "#omit-xml-declaration": "yes"// }U.xmlToJsonMinimum(
"<data>\n"
+ " <string>Example Text</string>\n"
+ " <integer>42</integer>\n"
+ " <float>3.14</float>\n"
+ " <boolean>true</boolean>\n"
+ " <date>2025-02-26</date>\n"
+ " <time>14:30:00</time>\n"
+ " <datetime>2025-02-26T14:30:00Z</datetime>\n"
+ " <array>Item 1</array>\n"
+ " <array>Item 2</array>\n"
+ " <object>\n"
+ " <key1>Value 1</key1>\n"
+ " <key2>Value 2</key2>\n"
+ " </object>\n"
+ " <null/>\n"
+ "</data>\n",
Json.JsonStringBuilder.Step.TWO_SPACES);
// {// "data": {// "string": "Example Text",// "integer": "42",// "float": "3.14",// "boolean": "true",// "date": "2025-02-26",// "time": "14:30:00",// "datetime": "2025-02-26T14:30:00Z",// "array": [// "Item 1",// "Item 2"// ],// "object": {// "key1": "Value 1",// "key2": "Value 2"// },// "null": ""// }// }U.jsonToXml(
"{\n"
+ " \"mydocument\": {\n"
+ " \"-has\": \"an attribute\",\n"
+ " \"and\": {\n"
+ " \"many\": [\n"
+ " \"elements\",\n"
+ " \"more elements\"\n"
+ " ]\n"
+ " },\n"
+ " \"plus\": {\n"
+ " \"-a\": \"complex\",\n"
+ " \"#text\": \"\\n element as well\\n \"\n"
+ " }\n"
+ " },\n"
+ " \"#omit-xml-declaration\": \"yes\"\n"
+ "}",
Xml.XmlStringBuilder.Step.TWO_SPACES);
// <mydocument has="an attribute">// <and>// <many>elements</many>// <many>more elements</many>// </and>// <plus a="complex">// element as well// </plus>// </mydocument>U.jsonToXmlMinimum(
"{\n"
+ " \"data\": {\n"
+ " \"string\": \"Example Text\",\n"
+ " \"integer\": \"42\",\n"
+ " \"float\": \"3.14\",\n"
+ " \"boolean\": \"true\",\n"
+ " \"date\": \"2025-02-26\",\n"
+ " \"time\": \"14:30:00\",\n"
+ " \"datetime\": \"2025-02-26T14:30:00Z\",\n"
+ " \"array\": [\n"
+ " \"Item 1\",\n"
+ " \"Item 2\"\n"
+ " ],\n"
+ " \"object\": {\n"
+ " \"key1\": \"Value 1\",\n"
+ " \"key2\": \"Value 2\"\n"
+ " },\n"
+ " \"null\": \"\"\n"
+ " }\n"
+ "}",
Xml.XmlStringBuilder.Step.TWO_SPACES);
// <data>// <string>Example Text</string>// <integer>42</integer>// <float>3.14</float>// <boolean>true</boolean>// <date>2025-02-26</date>// <time>14:30:00</time>// <datetime>2025-02-26T14:30:00Z</datetime>// <array>Item 1</array>// <array>Item 2</array>// <object>// <key1>Value 1</key1>// <key2>Value 2</key2>// </object>// <null string="true"/>// </data>U.Builderbuilder = U.objectBuilder()
.add("firstName", "John")
.add("lastName", "Smith")
.add("age", 25)
.add("address", U.arrayBuilder()
.add(U.objectBuilder()
.add("streetAddress", "21 2nd Street")
.add("city", "New York")
.addNull("cityId")
.add("state", "NY")
.add("postalCode", "10021")))
.add("phoneNumber", U.arrayBuilder()
.add(U.objectBuilder()
.add("type", "home")
.add("number", "212 555-1234"))
.add(U.objectBuilder()
.add("type", "fax")
.add("number", "646 555-4567")));
System.out.println(builder.toJson());
System.out.println(builder.toXml());

XmlBuilderbuilder = XmlBuilder.create("Projects")
.e("underscore-java").a("language", "Java").a("scm", "SVN")
.e("Location").a("type", "URL")
.t("https://github.com/javadev/underscore-java/")
.up()
.up()
.e("JetS3t").a("language", "Java").a("scm", "CVS")
.e("Location").a("type", "URL")
.t("https://jets3t.s3.amazonaws.com/index.html");
System.out.println(builder.toXml(Xml.XmlStringBuilder.Step.TWO_SPACES));
System.out.println(builder.toJson(Json.JsonStringBuilder.Step.TWO_SPACES));