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stackoverflow.com › questions › 11229986 › get-string-character-by-index

The method you're looking for is charAt. Here's an example:

String text = "foo";
char charAtZero = text.charAt(0);
System.out.println(charAtZero); // Prints f

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 string, you would use the Character.toString method:

String text = "foo";
String letter = Character.toString(text.charAt(0));
System.out.println(letter); // Prints f

If you want more information on the Character class and the toString method, I pulled my info from the documentation on Character.toString.

Answer from Ricardo Altamirano on Stack Overflow

Stack Overflow

stackoverflow.com › questions › 11229986 › get-string-character-by-index

java - Get string character by index - Stack Overflow

Top answer

1 of 13

410

The method you're looking for is charAt. Here's an example:

String text = "foo";
char charAtZero = text.charAt(0);
System.out.println(charAtZero); // Prints f

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 string, you would use the Character.toString method:

String text = "foo";
String letter = Character.toString(text.charAt(0));
System.out.println(letter); // Prints f

If you want more information on the Character class and the toString method, I pulled my info from the documentation on Character.toString.

2 of 13

57

You want .charAt()

Here's a tutorial

"mystring".charAt(2)

returns s

If you're hellbent on having a string there are a couple of ways to convert a char to a string:

String mychar = Character.toString("mystring".charAt(2));

Or

String mychar = ""+"mystring".charAt(2);

Or even

String mychar = String.valueOf("mystring".charAt(2));

For example.

W3Schools

w3schools.com › java › ref_string_indexof.asp

Java String indexOf() Method

Java Examples Java Videos Java Compiler Java Exercises Java Quiz Java Code Challenges Java Server Java Syllabus Java Study Plan Java Interview Q&A Java Certificate ... String myStr = "Hello planet earth, you are a great planet."; System.out.println(myStr.indexOf("planet"));

Discussions

In Java How Do You Assign A Char To A Particular Index In A String?

You can't manipulate a string like that. Java Strings are immutable; in order to change them, you have to create a new one; easiest way would be using substring to cut out the parts of the string you want versus the one character you don't. Furthermore, charAt just gives you the character from the string; it's not a reference to the character than can be manipulated, it's just a copy of the character value. More on reddit.com

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November 13, 2020

Find all index of occurrences of character in a string

Why would you even need the indexOf method? The naive, straightforward approach is to use .charAt and to loop over the characters in the string using a forloop. (TBH, .indexOf does exactly the same under the hood, just adds a starting index and it stops on the first occurrence). Honestly, the only way to learn proper programming is to stop searching for solutions and to sit down and try to work out your own solutions, because otherwise, you get in over your head, as in your case ending with code that you might have been able to somewhat reproduce, but that you don't understand. Start with pen(cil) and paper and try to figure out how you, the person, would address a problem. Only once you have found a solution start thinking about programming it. And don't memorize. Especially not code. Code adapts to the situation and is only the end product, not the starting point. Edit: Very mature move/s of you blocking people that offer help and advice to you just because you feel personally attacked or disagree with what has been said. More on reddit.com

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October 7, 2024

Java, how to count the indexes of a String array readin by Scanner?

.length returns the number of characters The length attribute of an array tells you how many elements the array can hold. For the split method, the array’s length matches the number of Strings that were split-off from the original String. The maximum index of an array is 1 less than its length, due to 0-indexing. I need a way to handle/avoid the out of bounds exception which may occur if I access the 3rd index. Check whether the sArr.length > 3. More on reddit.com

r/learnprogramming

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November 18, 2021

[JAVA] Best practice to obtain substring using index of a character that may not be in original string.

Step through the string, one character at a time, looking for a comma. If you reach either the end of the string or a comma, you know what the first id is. More on reddit.com

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