java拆分字符串split

经常需要用java拆分字符串如1,2,3,4 tom,jim,andy,han

package com.java.lang;
 
public class StringSp {
 
	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		java.lang.String a = "my name is yuexiaosheng my blog is java-er.com";
 
		// java.lang.String 的字符串拆分算法
		String[] arr = a.split(" ");
		for (int i = 0; i < arr.length; i++) {
			System.out.println(i + " " + arr[i]);
		}
		String b = "green|red|blue|black";
		// java.lang.String 的字符串拆分算法
		arr = b.split("|");
		System.out.println("拆分暗礁-------------------------------------------");
		for (int i = 0; i < arr.length; i++) {
			System.out.println(i + " " + arr[i]);
		}
		System.out.println("拆分暗礁-------------------------------------------");
		arr = b.split("\\|");
		for (int i = 0; i < arr.length; i++) {
			System.out.println(i + " " + arr[i]);
		}
	}
 
}

0 my
1 name
2 is
3 yuexiaosheng
4 my
5 blog
6 is
7 java-er.com
拆分暗礁——————————————-
0
1 g
2 r
3 e
4 e
5 n
6 |
7 r
8 e
9 d
10 |
11 b
12 l
13 u
14 e
15 |
16 b
17 l
18 a
19 c
20 k
拆分暗礁——————————————-
0 green
1 red
2 blue
3 black

结论部分字符串需要转义,否则按空计算 会把字符一个个拆开。


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