# Using String\[ : 10\] in Java mode

**URL:** <https://discourse.processing.org/t/using-string-10-in-java-mode/26520>\
**Category:** Beginners\
**Created:** [December 26, 2020, 12:16pm UTC](https://discourse.processing.org/t/using-string-10-in-java-mode/26520 "2020-12-26T12:16:24Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![CodeMasterX](https://yyz2.discourse-cdn.com/flex036/user_avatar/discourse.processing.org/codemasterx/32/2942_2.png) [@CodeMasterX](https://discourse.processing.org/u/CodeMasterX)\
**Post date:** [December 26, 2020, 12:16pm UTC](https://discourse.processing.org/t/using-string-10-in-java-mode/26520/1 "2020-12-26T12:16:24Z")

</div>

I started learning processing.py and found a String[int] function (String.charAt( ) ) and String[: int] which returns the string before `int`.

Can I do something similar to it in Java mode (normal processing) without using

```auto
String input = "hello", newString = "";
for(int i = 0; i < num; i++) {
   newString += input.charAt(i);
}

```

?

The [:4] function is just so useful

---

<div class="post-metadata">

**Author:** ![noel](https://yyz2.discourse-cdn.com/flex036/user_avatar/discourse.processing.org/noel/32/213_2.png) [@noel](https://discourse.processing.org/u/noel)\
**Post date:** [December 26, 2020, 1:05pm UTC](https://discourse.processing.org/t/using-string-10-in-java-mode/26520/2 "2020-12-26T13:05:50Z")

</div>

See the metods in this tutorial.

> **[Java - Strings Class - Tutorialspoint](https://www.tutorialspoint.com/java/java_strings.htm)**