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[英]How to split the string before the 2nd occurrence of a character in Java
[英]Java - Get substring from 2nd last occurrence of a character in string
我的輸入: "professions/medical/doctor/"
我想要的 output: "doctor"
我有以下解決方案,但它不是單行的:
String v = "professions/medical/doctor/";
String v1 = v.substring(0, v.length() - 1);
String v2 = v1.substring(v1.lastIndexOf("/")+1, v1.length());
System.out.println(v2);
我怎樣才能在單行中達到同樣的效果?
我可能會在這里使用String#split
(需要一個或兩個行的解決方案):
String v = "professions/medical/doctor/";
String[] parts = v.split("/");
String v2 = parts[parts.length-1];
System.out.println(v2);
如果你知道你想要第三個組件,那么你可以使用:
System.out.println(v.split("/")[2]);
對於真正的單線, String#replaceAll
可能會起作用:
String v = "professions/medical/doctor/";
String v2 = v.replaceAll(".*/([^/]+).*", "$1");
System.out.println(v2);
使用lastIndexOf(str, fromIndex)
變體:
String v2 = v.substring(v.lastIndexOf('/', v.length() - 2) + 1, v.length() - 1);
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