Searching char in String

[Priya456]

public class Matching
{
public static void main(String args[])
{
String str = "pqrpqrpqr";

System.out.println(str.indexOf('r'));
System.out.println(str.indexOf("qrp"));
System.out.println(str.indexOf('u'));

System.out.println(str.lastIndexOf('p'));

System.out.println(str.charAt(3));
System.out.println(str.length());
System.out.println(str.charAt(12));
}
}