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replace类的replaceAll或String方法。如果您要替换子字符串，可以使用substring API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)", "");

修改

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

示例：

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“（”的字符串数组，并且输出数组的位置0处的字符串是您想要的字符。

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

Option Explicit
Function CleanStopWords(S As String, StopWords As Range)
    Dim RE As Object
    Dim SW() As String
    Dim C As Range
    Dim I As Long

ReDim SW(1 To StopWords.Count)
For I = 1 To StopWords.Count
    SW(I) = StopWords(I)
Next I

Set RE = CreateObject("vbscript.regexp")
With RE
    .Global = True
    .ignorecase = True

    'create pattern using the StopWords
    .Pattern = "\b(?:" & Join(SW, "|") & ")\b\s*"

    CleanStopWords = .Replace(S, "")
End With

End Function

{{3}}
originalString.replaceFirst("[(].*?[)]", "");可以替换为replaceFirst()

Answer 7

您应该使用String对象的substring（）方法。

以下是一个示例代码：

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);

Answer 8

Using StringUtils from commons lang

空源字符串将返回null。空（“”）源字符串将返回空字符串。 null remove字符串将返回源字符串。空（“”）删除字符串将返回源字符串。

String str = StringUtils.remove("Test remove", "remove");
System.out.println(str);
//result will be "Test"

Answer 9

您可以使用replace修复字符串。以下将返回“（”之前的所有内容，并且还会删除所有前导和尾随空格。如果字符串以“（”开头，它将保持原样。

str = "manchester united (with nice players)"
matched = str.match(/.*(?=\()/)
str.replace(matched[0].strip) if matched

Answer 10

// Java program to remove a substring from a string
public class RemoveSubString {

    public static void main(String[] args) {
        String master = "1,2,3,4,5";
        String to_remove="3,";

        String new_string = master.replace(to_remove, "");
        // the above line replaces the t_remove string with blank string in master

        System.out.println(master);
        System.out.println(new_string);

    }
}

Answer 11

如果您只需要删除“（”之后的所有内容，请尝试此操作。如果没有括号，则不执行任何操作。

StringUtils.substringBefore(str, "(");

如果括号后可能有内容，请尝试此操作。

String toRemove = StringUtils.substringBetween(str, "(", ")");
String result = StringUtils.remove(str, "(" + toRemove + ")");

要删除结束符，请使用str.trim()

Apache StringUtils函数为null，empty和没有匹配安全性

Answer 12

科特林溶液

如果要从末尾删除特定的字符串，请使用 removeSuffix（Documentation）

var text = "one(two"
text = text.removeSuffix("(two") // "one"

如果字符串中不存在后缀，则仅返回原始后缀

var text = "one(three"
text = text.removeSuffix("(two") // "one(three"

如果要在字符后删除，请使用

// Each results in "one"

text = text.replaceAfter("(", "").dropLast(1) // You should check char is present before `dropLast`
// or
text = text.removeRange(text.indexOf("("), text.length)
// or
text = text.replaceRange(text.indexOf("("), text.length, "")

您还可以签出相似的removePrefix，removeRange，removeSurrounding和replaceAfterLast

完整列表在这里：（Documentation）

在Java中删除部分字符串

12 个答案:

科特林溶液