In your original version, "f" is a String and fieldNames.charAt(4) is a char, and you cannot compare a String with a char using ==. If you write 'f' instead of "f" (as above) you will be …

For more information, see the Java documentation on String.charAt. If you want another simple tutorial, this one or this one. If you don't want the result as a char data type, but rather as a …

Dec 19, 2012 · char charAtAnyPos= input.charAt(pos); // in pos you enter that index from where you want to get the char from By the way, you can't take a char directly as an input.

Mar 2, 2011 · You've got several questions mixed up together. Broadly, yes, str.charAt(str.length() - 1) is usually the last character in the string; but consider what happens if str is empty, or null.

Nov 17, 2011 · } Source code from String.java in Java 8 source code Hence String.valueOf(char) seems to be most efficient method, in terms of both memory and speed, for converting char to …

May 9, 2013 · The Unicode character set is a super set of ASCII. So there can be characters in a Java string that do not belong to ASCII. Such characters do not have an ASCII numeric value, …

Jan 6, 2017 · There are a countless ways to write, and implement, an algorithm for traversing a string, char by char, in Java. Which one is most correct, easist, and most simple are 3 different …

Apr 16, 2014 · 2 I have a question how can I enter char using Scanner in java? Such as for integer number Scanner input=new Scanner(System.in); int a = input.nextInt(); but how can I …

Sep 30, 2015 · I am trying to make a program that uses three digit numbers to identify items and I am trying to use something like the charAt method for integers or something.

Jun 23, 2011 · For instance, charAt would have to compare the offset with the start and end points of the gap, and make the corresponding adjustments to the actual index value before fetching …