String substring(a) 和substring(a,b)

package basic;

/**
 * create by liuzhiwei on 2020/3/29
 */
public class StringTest {
    public static void main(String[] args) {
        //線程安全的
        StringBuffer stringBuffer = new StringBuffer();
        //線程安全的
        StringBuilder stringBuilder = new StringBuilder();

        String s = new String("0123456789");
        System.out.println(s.substring(0, 5)); //[0,5)左包含 右不包含
        System.out.println(s.substring(5)); //從索引下標開始

        int length = s.length();
        System.out.println(s.substring(5, s.length()));

        //Exception in thread "main" java.lang.StringIndexOutOfBoundsException: String index out of range: 11
        System.out.println(s.substring(5, 11));

    }
}