在Java中删除部分字符串

Question

我想从一个字符中删除一部分字符串,即:

源字符串:

manchester united (with nice players)

目标字符串:

manchester united

Answer 1

有多种方法可以做到这一点.如果您有要替换的字符串,则可以使用该类的replace或replaceAll方法String.如果您要替换子字符串,可以使用substringAPI 获取子字符串.

例如

String str = "manchester united (with nice players)";
System.out.println(str.replace("(with nice players)", ""));
int index = str.indexOf("(");
System.out.println(str.substring(0, index));

要替换"()"中的内容,您可以使用:

int startIndex = str.indexOf("(");
int endIndex = str.indexOf(")");
String replacement = "I AM JUST A REPLACEMENT";
String toBeReplaced = str.substring(startIndex + 1, endIndex);
System.out.println(str.replace(toBeReplaced, replacement));

Answer 2

字符串替换

String s = "manchester united (with nice players)";
s = s.replace(" (with nice players)", "");

编辑:

按索引

s = s.substring(0, s.indexOf("(") - 1);

Answer 3

使用String.Replace():

http://www.daniweb.com/software-development/java/threads/73139

例:

String original = "manchester united (with nice players)";
String newString = original.replace(" (with nice players)","");

Answer 4

我首先将原始字符串拆分为带有标记"("的String数组,并且输出数组的位置0处的String是您想要的.

String[] output = originalString.split(" (");

String result = output[0];

Answer 5

使用StringBuilder,您可以替换以下方式.

StringBuilder str = new StringBuilder("manchester united (with nice players)");
int startIdx = str.indexOf("(");
int endIdx = str.indexOf(")");
str.replace(++startIdx, endIdx, "");

Answer 6

originalString.replaceFirst("[(].*?[)]", "");

https://ideone.com/jsZhSC
replaceFirst()可以替换为replaceAll()

Answer 7

您应该使用String对象的substring()方法.

这是一个示例代码:

假设:我在这里假设您要检索字符串直到第一个括号

String strTest = "manchester united(with nice players)";
/*Get the substring from the original string, with starting index 0, and ending index as position of th first parenthesis - 1 */
String strSub = strTest.subString(0,strTest.getIndex("(")-1);