Answers for "how to give string hierarchy in java"

string method example in java

public char charAt(int index)
-----------------------------
String x = "airplane";
System.out.println( x.charAt(2) ); // output is 'r'

string method example in java

public int length()
-----------------------
String x = "01234567";
System.out.println( x.length() ); // returns "8"