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- How to prevent java.lang.String.split() from creating a leading empty string? 7 answers
如何防止java.lang.String.split()创建一个前导空字符串? 7个答案
I know how to split a string by space as the following:
我知道如何按空格分割字符串如下:
String[] array = string.split(" ");
This works great until I try to split string that starts with a space like
这很有效,直到我尝试拆分以类似空格开头的字符串
" I like apple"
“ 我喜欢苹果”
The result looks something like this:
结果看起来像这样:
{"", "I", "like", "apple"}
{““, “我喜欢苹果”}
How can I split the string so it only keeps strings that is not empty?
如何拆分字符串以便它只保留非空的字符串?
2 个解决方案
#1
2
You can call string.trim()and then string.split(" "). The trim() method removes spaces before the first non-space-character and after the last non-space-character.
您可以调用string.trim()然后调用string.split(“”)。 trim()方法在第一个非空格字符之前和最后一个非空格字符之后删除空格。
#2
1
To remove leading and trailing spaces, you can use .trim().
要删除前导和尾随空格,可以使用.trim()。
String[] array = string.trim().split(" ");
#1
2
You can call string.trim()and then string.split(" "). The trim() method removes spaces before the first non-space-character and after the last non-space-character.
您可以调用string.trim()然后调用string.split(“”)。 trim()方法在第一个非空格字符之前和最后一个非空格字符之后删除空格。
#2
1
To remove leading and trailing spaces, you can use .trim().
要删除前导和尾随空格,可以使用.trim()。
String[] array = string.trim().split(" ");