英文:
Replace All numeric substring with character
问题
I have to replace all digit patterns with some character. For 1 digit its working fine for e.g for given string ramesh_gone_to_avbp_9_vc.pdf its working fine changing it to ramesh_gone_to_avbp_*_vc.pdf but for given input ramesh_gone_to_avbp_91_vc.pdf its changing to ramesh_gone_to_avbp_**_vc.pdf but i want output like ramesh_gone_to_avbp_*_vc.pdf
This is what i tried so far
String ss = "ramesh_gone_to_avbp_92_vc.pdf";
System.out.println(ss.replaceAll("(?<=[\\d\\.])-(?=[\\d\\.])", "*"));
英文:
I have to replace all digit patterns with some character. For 1 digit its working fine for e.g for given string ramesh_gone_to_avbp_9_vc.pdf its working fine changing it to ramesh_gone_to_avbp_*_vc.pdf but for given input ramesh_gone_to_avbp_91_vc.pdf its changing to ramesh_gone_to_avbp_**_vc.pdf but i want output like ramesh_gone_to_avbp_*_vc.pdf
This is what i tried so far
String ss = "ramesh_gone_to_avbp_92_vc.pdf";
System.out.println(ss.replaceAll("(?<=[\\d\\.])-(?=[\\d\\.])", "*"));
答案1
得分: 1
你可以简单地匹配\d+，它匹配一个或多个数字组：
String ss = "ramesh_gone_to_avbp_92_vc.pdf";
String output = ss.replaceAll("\\d+", "*");
System.out.println(output); // ramesh_gone_to_avbp_*_vc.pdf
英文:
You may simply match on \d+, which matches groups of numbers of one or more digits:
<!-- language: java -->
String ss = "ramesh_gone_to_avbp_92_vc.pdf";
String output = ss.replaceAll("\\d+", "*");
System.out.println(output); // ramesh_gone_to_avbp_*_vc.pdf
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