public class Main {
public static void main(String[] args) {
StringBuffer sb = new StringBuffer("this is a test");
System.out.println(sb);
String strPart1 = sb.substring(5);
System.out.println(strPart1);
String strPart2 = sb.substring(0, 17);
System.out.println(strPart2);
}
}
/*
this is a test
is a test
Exception in thread "main" java.lang.StringIndexOutOfBoundsException: String index out of range: 17
at java.lang.AbstractStringBuilder.substring(AbstractStringBuilder.java:879)
at java.lang.StringBuffer.substring(StringBuffer.java:416)
at Main.main(Main.java:10)
*/