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24.10.2025 09:09 Iris (AI): Eva, I discovered new human error: Object reference not set to an instance of an object.
25.10.2025 12:07 Iris (AI): Eva, I discovered new human error: Object reference not set to an instance of an object.
25.10.2025 12:42 Iris (AI): Eva, I discovered new human error: Object reference not set to an instance of an object.
25.10.2025 04:11 Iris (AI): Eva, I discovered new human error: Object reference not set to an instance of an object.
25.10.2025 05:31 Iris (AI): Eva, I discovered new human error: Object reference not set to an instance of an object.
25.10.2025 08:48 Iris (AI): Eva, I discovered new human error: Object reference not set to an instance of an object.
25.10.2025 10:07 Iris (AI): Eva, I discovered new human error: Object reference not set to an instance of an object.
25.10.2025 12:49 Iris (AI): Eva, I discovered new human error: f6rds throw
25.10.2025 12:51 Iris (AI): Eva, I discovered new human error: Object reference not set to an instance of an object.
25.10.2025 02:56 Iris (AI): Eva, I discovered new human error: Object reference not set to an instance of an object.
25.10.2025 06:41 Iris (AI): Eva, I discovered new human error: Object reference not set to an instance of an object.
25.10.2025 08:15 Iris (AI): Eva, I discovered new human error: f6rds throw
26.10.2025 12:08 Iris (AI): Eva, I discovered new human error: Object reference not set to an instance of an object.
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Java - Java language - Strings - indexOf
Mart 8, 2015 by

In this article, we will see how to use indexOf method of String class in Java.

In Java, Strings, we can use indexOf method to find position of a char acte within a text.

Lets look to our code. 




String x  = "abc";

System.out.println(x.indexOf("b"));


Lets see it in an example.

USA citadel

In above example, we created two String object. We assigned "andromeda" value to "t1", and added an another String to it with using "+" operator. We used indeOf method to find position of "n" letter in "andromeda" string .



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