如何按空间分割字符串

I need to split my String by spaces. For this I tried:

我需要用空格分割字符串。我试着:

str = "Hello I'm your String";
String[] splited = str.split(" ");

But it doesn't seems to work.

但这似乎行不通。

12 个解决方案

#1

424

What you have should work. If, however, the spaces provided are defaulting to... something else? You can use the whitespace regex:

你所拥有的应该是有用的。但是，如果提供的空间默认为……别的吗?您可以使用空格regex:

str = "Hello I'm your String";
String[] splited = str.split("\\s+");

This will cause any number of consecutive spaces to split your string into tokens.

这将导致任意数量的连续空格将字符串分割为令牌。

As a side note, I'm not sure "splited" is a word :) I believe the state of being the victim of a split is also "split". It's one of those tricky grammar things :-) Not trying to be picky, just figured I'd pass it on!

顺便说一句，我不确定“分裂”是一个词:)我认为成为分裂受害者的状态也是“分裂”。这是一件棘手的语法问题:- - -不要太挑剔，我只是想把它传下去!

#2

While the accepted answer is good, be aware that you will end up with a leading empty string if your input string starts with a white space. For example, with:

虽然所接受的答案是好的，但是请注意，如果输入字符串以空格开头，那么您将得到一个前导空字符串。例如,使用:

String str = " Hello I'm your String";
String[] splitStr = str.split("\\s+");

The result will be:

结果将是:

splitStr[0] == "";
splitStr[1] == "Hello";
splitStr[2] == "I'm";
splitStr[3] == "Your";
splitStr[4] == "String";

So you might want to trim your string before splitting it:

因此，你可能想要修剪你的线之前，分裂它:

String str = " Hello I'm your String";
String[] splitStr = str.trim().split("\\s+");

#3

I do believe that putting a regular expression in the str.split parentheses should solve the issue. The Java String.split() method is based upon regular expressions so what you need is:

我相信在string .split圆括号中放入正则表达式应该可以解决这个问题。Java String.split()方法基于正则表达式，因此需要:

str = "Hello I'm your String";
String[] splitStr = str.split("\\s+");

#4

Use Stringutils.split() to split the string by whites paces. For example StringUtils.split("Hello World") returns "Hello" and "World";

使用Stringutils.split()将字符串分割成白色。例如stringutil的。split(“Hello World”)返回“Hello”和“World”;

In order to solve the mentioned case we use split method like this

为了解决上述情况，我们采用了这样的分割方法

String split[]= StringUtils.split("Hello I'm your String");

when we print the split array the output will be :

当我们打印分割数组时，输出将是:

Hello

你好

I'm

我

your

你的

String

字符串

For complete example demo check here

关于完整的示例演示，请在这里检查

#5

Try this one

试试这个

    String str = "This is String";
    String[] splited = str.split("\\s+");

    String split_one=splited[0];
    String split_second=splited[1];
    String split_three=splited[2];

   Log.d("Splited String ", "Splited String" + split_one+split_second+split_three);

#6

if somehow you don't wanna use String split method then you can use StringTokenizer class in Java as..

如果不希望使用字符串分割方法，那么可以在Java中使用StringTokenizer类as。

    StringTokenizer tokens = new StringTokenizer("Hello I'm your String", " ");
    String[] splited = new String[tokens.countTokens()];
    int index = 0;
    while(tokens.hasMoreTokens()){
        splited[index] = tokens.nextToken();
        ++index;
    }

#7

An alternative way would be:

另一种办法是:

import java.util.regex.Pattern;

...

private static final Pattern SPACE = Pattern.compile(" ");
String[] arr = SPACE.split(str); // str is the string to be split

Saw it here

看到这里

#8

Try

试一试

String[] splited = str.split("\\s");

http://download.oracle.com/javase/tutorial/essential/regex/pre_char_classes.html

#9

OK, so we have to do splitting as you already got the answer I would generalize it.

好的，我们要做分裂，因为你们已经得到了我要推广的答案。

If you want to split any string by spaces, delimiter(special chars).

如果要按空格分隔任何字符串，分隔符(特殊字符)。

First, remove the leading space as they create most of the issues.

首先，删除领导空间，因为它们创建了大多数问题。

str1 = "    Hello I'm your       String    ";
str2 = "    Are you serious about this question_  boy, aren't you?   ";

First remove the leading space which can be space, tab etc.

首先删除可以是空格、制表符等的前导空格。

String s = str1.replaceAll("^\\s+","");//starting with whitespace one or more

Now if you want to split by space or any special char.

现在，如果你想按空格或任何特殊字符来划分。

String[] sa = s.split("[^\\w]+");//split by any non word char

But as w contains [a-zA-Z_0-9] ,so if you want to split by underscore(_) also use

但是由于w包含[a-zA-Z_0-9]，所以如果您想要通过下划线(_)进行拆分，也可以使用。

 String[] sa = s.split("[!,? ._'@]+");//for str2 after removing leading space

#10

Simple to Spit String by Space

简单地按空格吐字串

    String CurrentString = "First Second Last";
    String[] separated = CurrentString.split(" ");

    for (int i = 0; i < separated.length; i++) {

         if (i == 0) {
             Log.d("FName ** ", "" + separated[0].trim() + "\n ");
         } else if (i == 1) {
             Log.d("MName ** ", "" + separated[1].trim() + "\n ");
         } else if (i == 2) {
             Log.d("LName ** ", "" + separated[2].trim());
         }
     }

#11

Here is a method to trim a String that has a "," or white space

这里有一种方法来修剪带有“，”或空格的字符串

private String shorterName(String s){
        String[] sArr = s.split("\\,|\\s+");
        String output = sArr[0];

        return output;
    }

#12

you can saperate string using the below code

可以使用下面的代码分隔字符串

   String thisString="Hello world";

   String[] parts = theString.split(" ");

   String first = parts[0];//"hello"

    String second = parts[1];//"World"

#1

424