String类中的split方法_string[] split = filed.split(",");-优快云博客

本文链接：https://blog.youkuaiyun.com/anyview93/article/details/80546380

本文通过几个实例演示了Java中使用split方法对字符串进行分割时的一些特殊情况，并解释了不同输入条件下得到的数组长度及内容。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

字符串用split方法进行分割的几种特殊情况：

public class SplitDemo {
	public static void main(String[] args) {
		String str = "AB";
		String[] split = str.split("/");
		System.out.println(str + "用'/'分割后数组长度:" + split.length);            //    1
		System.out.println(str + "用'/'分割后数组:" + Arrays.toString(split));      //    [AB]
		System.out.println("---------------------------------------");
		String[] split2 = str.split(",");
		System.out.println(str + "用','分割后数组长度:" + split2.length);            //    1
		System.out.println(str + "用','分割后数组:" + Arrays.toString(split2));      //    [AB]
		System.out.println("---------------------------------------");
		String s = "A/";
		String[] split3 = s.split("/");                        
		System.out.println(s + "用'/'分割后数组长度:" + split3.length);              //    1
		System.out.println(s + "用'/'分割后数组:" + Arrays.toString(split3));        //    [A]
		System.out.println("---------------------------------------");
		String ss = "/";
		String[] split4 = ss.split("/");
		System.out.println(ss + "用'/'分割后数组长度:" + split4.length);              //    0
		System.out.println(ss + "用'/'分割后数组:" + Arrays.toString(split4));        //    []
		System.out.println("---------------------------------------");
		String sss = "";
		String[] split5 = ss.split("/");
		System.out.println(sss + "用'/'分割后数组长度:" + split5.length);              //    0
		System.out.println(sss + "用'/'分割后数组:" + Arrays.toString(split5));        //    []
	}
}