“主要”. lang。StringIndexOutOfBoundsException:字符串索引超出范围:17。

Exception in thread "main" `java.lang.StringIndexOutOfBoundsException: String index out of range: 17`        at java.lang.String.charAt(String.java:658)
    at Stadium.<init>(Stadium.java:104)
    at StadiumPanel.main(StadiumPanel.java:53)
Exception in thread "main" `java.lang.StringInd