字符串截取

字符串截取

字符串截取方法

splist()方法,将字串切割为若干部分,返回值为一个字符串数组.()里面其实是一个正则表达式.

正则表达式

注意,如果要按照.切分需要两个(反斜杠)

代码示例

public class Demo03 {
    public static void main(String[] args) {
        String str1 = "abc,def,ghi";
        String arr1[] = str1.split(",");

        for (int i = 0; i < arr1.length; i++) {
            System.out.println(arr1[i]);
        }
        System.out.println("===================");
        String str2 = "abc def ghi";
        String arr2[] = str2.split(" ");
        for (int i = 0; i < arr2.length; i++) {
            System.out.println(arr2[i]);
        }
        System.out.println("===================");
        String str3 = "abc.abc.abc";
        String arr3[] = str3.split(".");
        System.out.println(arr3.length);

        for (int i = 0; i < arr3.length; i++) {
            System.out.println(arr3[i]);
        }
        System.out.println("===================");
        String str4 = "VVV.VVV.VVV";
        String arr4[] = str4.split("\\.");//需要两个\\
        System.out.println(arr4.length);

        for (int i = 0; i < arr4.length; i++) {
            System.out.println(arr4[i]);
        }


    }
}