Java 8中新增了一个String类的join方法,可以更加简单地实现字符串连接。 List<String> list = new ArrayList<String>(); list.add("apple"); list.add("orange"); list.add("banana"); String result = String.join("", list); 上面的代码中,我们将空字符串作为分隔符,将列表中的所有字符串连接起来。
所以当有有这种需求的时候,你必须要使用第三方类库做如下的工作: convert List<String> to a String 但是现在Java8 新特性开始支持joinstring collection 了。 Java8 添加了一个新的类叫做StringJoiner。 正如这个类名所示,我们能够通过使用它来完成: convert List<String> to a String 是不是很酷呢, 那么下面我...
* List<String> strings = new LinkedList<>(); * strings.add("Java");strings.add("is"); * strings.add("cool"); * String message = String.join(" ", strings); * //message returned is: "Java is cool" * * Set<String> strings = new LinkedHashSet<>(); * strings.add("Java"); ...
2.String.join()Example Let us see the example of both variations of the method. First, we will concatenate the strings passed asvarargs. Stringjoined=String.join("/","usr","local","bin"); The program output. usr/local/bin Next, we are joining aListof strings. Stringids=String.join("...
str转化为list/tuple,直接进行转换即可。而由list/tuple转换为str,则需要借助join()函数来实现。join()函数是这样描述的: """ S.join(iterable) -> str Return a string which is the concatenation of the strings in the iterable. The separator between elements is S. ...
The Java 8 has added a new class called StringJoiner to join Strings. The java.util.StringJoiner can be used to join any number of arbitrary String, a list of String, or an array of String in Java. You can choose any delimiter to join String like comma, pipe, colon, or semi-colon....
1.2. Joining Array or List of Strings We can use this method to join the string items in the array to produce a joined string. String[]strArray={"How","To","Do","In","Java"};StringjoinedString=String.join(",",strArray);//How,To,Do,In,Java ...
Returns a newStringcomposed of copies of theCharSequence elementsjoined together with a copy of the specifieddelimiter. <blockquote>For example, text/java {@code List<String> strings = List.of("Java", "is", "cool"); String message = String.join(" ", strings); //message returned is: ...
在下文中一共展示了Strings.join方法的13个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的Java代码示例。 示例1: printServices ▲点赞 3▼ importio.fabric8.utils.Strings;//导入方法依赖的package包/类privatevoidprintServices(ServiceList serv...
publicclassStringConcat_Java{ publicstaticvoidmain(String[] args) { String var1 ="Hello, "+ "My name is Advait."+ " "+ "I am a writer at MUO."; System.out.println(var1); } } Here's the output of the above code: When you run the above code, it joins all the strings togethe...