特殊情況有 * ^ : | . \
一、單個符號作為分隔符
- String address="上海\上海市|閔行區\吳中路";
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String[] splitAddress=address.split( "\\" ); System.out.println(splitAddress[ 0 ]+splitAddress[ 1 ]+splitAddress[ 2 ]+splitAddress[ 3 ]); |
- String address="上海|上海市|閔行區|吳中路";
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String[] splitAddress=address.split( "\\|" ); //如果以豎線為分隔符,則split的時候需要加上兩個斜杠【\\】進行轉義 System.out.println(splitAddress[ 0 ]+splitAddress[ 1 ]+splitAddress[ 2 ]+splitAddress[ 3 ]); |
- String address="上海*上海市*閔行區*吳中路";
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String[] splitAddress=address.split( "\\*" ); System.out.println(splitAddress[ 0 ]+splitAddress[ 1 ]+splitAddress[ 2 ]+splitAddress[ 3 ]); |
- String address="上海:上海市:閔行區:吳中路";
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String[] splitAddress=address.split( "\\:" ); System.out.println(splitAddress[ 0 ]+splitAddress[ 1 ]+splitAddress[ 2 ]+splitAddress[ 3 ]); |
- String address="上海.上海市.閔行區.吳中路";
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String[] splitAddress=address.split( "\\." ); System.out.println(splitAddress[ 0 ]+splitAddress[ 1 ]+splitAddress[ 2 ]+splitAddress[ 3 ]); |
- String address="上海^上海市^閔行區^吳中路";
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String[] splitAddress=address.split( "\\^" ); System.out.println(splitAddress[ 0 ]+splitAddress[ 1 ]+splitAddress[ 2 ]+splitAddress[ 3 ]); |
- String address="上海@上海市@閔行區@吳中路";
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String[] splitAddress=address.split( "@" ); System.out.println(splitAddress[ 0 ]+splitAddress[ 1 ]+splitAddress[ 2 ]+splitAddress[ 3 ]); |
- String address="上海,上海市,閔行區,吳中路";
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String[] splitAddress=address.split( "," ); System.out.println(splitAddress[ 0 ]+splitAddress[ 1 ]+splitAddress[ 2 ]+splitAddress[ 3 ]); |
二、多個符號作為分隔符
String address="上海^上海市@閔行區#吳中路";
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String[] splitAddress=address.split( "\\^|@|#" ); System.out.println(splitAddress[ 0 ]+splitAddress[ 1 ]+splitAddress[ 2 ]+splitAddress[ 3 ]); |
例:
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String address = new String( "192.168.13.240" ); String[] str = address.split( "\\." ); for (String s : str){ System.out.println(s); } |
輸出格式:
192
168
13
240
總結:
(1)split表達式,其實就是一個正則表達式。* ^ | 等符號在正則表達式中屬于一種有特殊含義的字符,如果使用此種字符作為分隔符,必須使用轉義符即\\加以轉義。
(2)如果使用多個分隔符則需要借助 | 符號,如二所示,但需要轉義符的仍然要加上分隔符進行處理
到此這篇關于Java中正則表達式split()特殊符號使用詳解的文章就介紹到這了,更多相關Java split()內容請搜索服務器之家以前的文章或繼續瀏覽下面的相關文章希望大家以后多多支持服務器之家!
原文鏈接:https://www.cnblogs.com/xiaoxiaohui2015/p/5838674.html