Java 从字符串中删除特定字符
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Remove specific char from String
提问by M.ArslanKhan
How To remove a specific Character from a String. I have a Arraylist testingarray.
如何从字符串中删除特定字符。我有一个 Arraylist testingarray。
String line=testingarray.get(index).toString();
I want to remove a specific character from line.
我想从行中删除特定字符。
I have Array of uniCodes
我有 uniCode 数组
int uniCode[]={1611,1614,1615,1616,1617,1618};
i want to remove those characters that have these Unicodes.
我想删除那些具有这些 Unicode 的字符。
采纳答案by Shayan Pourvatan
use :
用 ：
NewString = OldString.replaceAll("char", "");
in your Example in comment use:
在您的评论示例中使用：
NewString = OldString.replaceAll("d", "");
for removing Arabic character please see following link
要删除阿拉伯字符，请参阅以下链接
how could i remove arabic punctuation form a String in java
removing characters of a specific unicode range from a string
回答by No_Rulz
Try this,
尝试这个，
String result = yourString.replaceAll("your_character","");
Example:
例子：
String line=testingarray.get(index).toString();
String result = line.replaceAll("[-+.^:,]","");
回答by Su-Au Hwang
If it's a single char, there is no need to use replaceAll, which uses a regular expression. Assuming "H is the character you want to replace":
如果是单个字符，则无需使用replaceAll，它使用正则表达式。假设“H 是您要替换的字符”：
String line=testingarray.get(index).toString();
String cleanLine = line.replace("H", "");
update (after edit): since you already have an int array of unicodes you want to remove (i'm assuming the Integers are decimal value of the unicodes):
更新（编辑后）：因为您已经有一个要删除的 unicode 整数数组（我假设整数是 unicode 的十进制值）：
String line=testingarray.get(index).toString();
int uniCodes[] = {1611,1614,1615,1616,1617,1618};
StringBuilder regexPattern = new StringBuilder("[");
for (int uniCode : uniCodes) {
regexPattern.append((char) uniCode);
}
regexPattern.append("]");
String result = line.replaceAll(regexPattern.toString(), "");
回答by Visruth
you can replace character using replace method in string.
您可以使用字符串中的替换方法替换字符。
String line = "foo";
line = line.replace("f", "");
System.out.println(line);
output
输出
oo
