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- Java split() method strips empty strings at the end? [duplicate] 2 answers
Java split()方法最后会删除空字符串? [重复] 2个答案
I have a string with values separated by a ;
我有一个字符串,其值由a分隔;
col1;col2;;
The last value is empty. I'm getting the number of columns by splitting the string:
最后一个值为空。我通过拆分字符串得到列数:
int columns = myString.split(";").length;
However, the above returns 2 instead of 3.
但是,上面的返回2而不是3。
Is this a problem of the split method?
这是拆分方法的问题吗?
1 个解决方案
#1
3
Read the Javadoc :
阅读Javadoc:
This method works as if by invoking the two-argument split method with the given expression and a limit argument of zero. Trailing empty strings are therefore not included in the resulting array.
此方法的作用就像通过调用给定表达式和limit参数为零的双参数split方法一样。因此,结尾的空字符串不包含在结果数组中。
You can use myString.split(";",-1) to get an array with trailing empty strings.
您可以使用myString.split(“;”, - 1)来获取具有尾随空字符串的数组。
#1
3
Read the Javadoc :
阅读Javadoc:
This method works as if by invoking the two-argument split method with the given expression and a limit argument of zero. Trailing empty strings are therefore not included in the resulting array.
此方法的作用就像通过调用给定表达式和limit参数为零的双参数split方法一样。因此,结尾的空字符串不包含在结果数组中。
You can use myString.split(";",-1) to get an array with trailing empty strings.
您可以使用myString.split(“;”, - 1)来获取具有尾随空字符串的数组。