How To Convert String To Char Inwards Java? Example

Earlier, nosotros possess got seen how to convert a graphic symbol to String inward Java as well as today we'll acquire contrary i.e. converting String to a character. Suppose, you lot possess got a String alongside value "s", how exercise you lot convert that to a char 's' inward Java (FYI, string literal are quoted within double quotes inward Java e.g. "c" as well as graphic symbol literals are quoted within unmarried quotes e.g. 'c' inward J)? Well, if you lot know, Java String is made of a graphic symbol array as well as java.lang.String course of report provides a method toCharArray() to recall that graphic symbol array. If your String contains only ane graphic symbol then, the solely chemical component inward graphic symbol array is what you lot are looking after. Though that's non the solely agency to convert a String to char inward Java.

You tin order the axe besides move charAt(index) method to acquire a char from String at a given index. Since String index starts from 0, "s".charAt(0) volition render 's', which is fifty-fifty easier than before approach.

Let's run across examples of both of these approaches to convert String to char inward Java.

String to char using toCharArray()

The toCharArray() method returns the graphic symbol array which makes the String. So, if you lot possess got only a unmarried graphic symbol equally String e.g. "a" so the toCharArray() volition render a graphic symbol array alongside only ane chemical component e.g. array alongside length 1 as well as the offset graphic symbol would live on the equivalent graphic symbol for the String. For example, hither is the code to convert "a" to graphic symbol 'a' inward Java:

String given = "a";
char[] chars = given.toCharArray();
char effect = chars[0];


You tin order the axe impress both given String as well as graphic symbol to run across if they are same or not. Here is the output when I printed them into the console on my Eclipse IDE:

System.out.println("given string: " + given);
System.out.println("result character: " + result);

Output:
given string: a
effect character: a

Btw, if you lot don't know System.out.println() method is overloaded as well as ane version takes String piece roughly other accept a character, hither because nosotros are concatenating String, the same method is called twice. See Complete Java Masterclass from Udemy to acquire to a greater extent than almost overloading as well as overriding inward Java.

String to char using charAt(index)

Whatever nosotros possess got done inward the previous example, tin order the axe besides live on done yesteryear using the charAt(int index) method.

If you lot await closely, inward the final example, nosotros offset acquire the graphic symbol array as well as so recall the char from the offset index because nosotros knew that our String only got ane character.

Instead of doing all this you lot could possess got only called the charAt(int index) method.

This method does same, i.e. render the graphic symbol from the graphic symbol array which backs the String. For example, if you lot possess got a String alongside only ane graphic symbol e.g. "b" so the next code volition convert this into a graphic symbol 'b':

String given = "b";
char b = given.charAt(0); 

This code volition render the graphic symbol from the offset index, which is 'b', thus nosotros possess got successfully converted string "b" to graphic symbol 'b' inward Java. You tin order the axe farther see, Introduction to Java for Programmers to acquire to a greater extent than almost String as well as graphic symbol literals inward Java.

Here is the screenshot of consummate Java computer program as well as its output for your reference:

That's all almost how to convert String to char inward Java. This is ane of the commutation things which every Java developers should live on aware of. You tin order the axe solve many coding problems if you lot know these basic techniques because most of the String based coding problems are zippo but an array based problem, in ane lawsuit you lot know how to convert a String to a graphic symbol array.

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