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Java - find character index in string

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Created by:
Emerson-V
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In this article, we would like to show you how to find a character index in string in Java.

Quick solution:

String text = "Dirask is awesome!";

int result = text.indexOf("D");    // 0

System.out.println(result);

 

Practical example

In this example, we use String.indexOf() method to find character index in the text string.

public class Example {

    public static void main(String[] args) {
        String text = "Dirask is awesome!";

        int index1 = text.indexOf("D");         // 0
        int index2 = text.indexOf("a");         // 3    (first occurrence)

        int index3 = text.indexOf("Dirask");    // 0
        int index4 = text.indexOf("is");        // 7

        System.out.println(index1);  // 0
        System.out.println(index2);  // 3    (first occurrence)

        System.out.println(index3);  // 0
        System.out.println(index4);  // 7
    }
}

Output:

0
3
0
7

Java - String (popular problems)

Java - find character index in string
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