![](https://cos-cdn.shuashuati.com/pipixue-web/2020-1231-2005-12/ti_inject-812ce.png)
public class Java_1{ public static void ___________(String args[]){ String string="现在学习如何访问一个字符串"; System.out.println("字符串 \""+string+"\""); System.out.println("字符串长度:"+_________________________); System.out.println("其中第7个字符是:"+string._______________(6)); char sub[] = new char[20]; System.out.print("从字节数组的第7到12获取字符是:"); string.getChars(6,12,sub,0); System.out.println(sub); } }