# OCP 1Z0-830 Java 21 Exam Prep

> Practice tests for Java SE 21 (1Z0-830) certification exam

Canonical page: [https://chrome-stats.com/d/com.certprep.javase21](https://chrome-stats.com/d/com.certprep.javase21)

## Overview

- **ID:** `com.certprep.javase21`
- **Platform:** Android
- **Type:** Android app
- **Status:** Available
- **Publisher:** RaRiRa
- **Category:** EDUCATION
- **Downloads:** 150
- **Version:** 1.2
- **Last updated:** 2026-08-30
- **First published:** 2026-02-17
- **Publisher country:** IN
- **Size:** 28 MB
- **Data as of:** 2026-09-13
- **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=com.certprep.javase21)
- **Website:** [https://rarira.com](https://rarira.com/)
- **Privacy policy:** [https://rarira.com/1z0830/privacy/](https://rarira.com/1z0830/privacy/)

## Description

Prepare for the Java SE 21 Developer Certification (1Z0-830) with confidence!<br><br>Java 21 1Z0-830 Practice Tests helps you master exam objectives with realistic mock exams, topic-wise tests, and detailed explanations.<br><br>Whether you&#39;re preparing for your first attempt or retaking the certification, this app is designed to simulate the real exam environment and improve your score.<br><br>🚀 Features<br><br>✔ Full-length mock exams (50 questions, 90 minutes)<br>✔ Topic-wise practice tests<br>✔ Detailed explanations for every question<br>✔ Covers all 12 official exam objectives<br>✔ Multiple-choice &amp; multi-select questions<br>✔ Clean and simple exam interface<br><br>📘 Covers Exam Objectives<br><br>• Java fundamentals<br>• Control flow<br>• Object-oriented programming<br>• Records, enums, sealed classes<br>• Pattern matching<br>• Exception handling<br>• Generics and collections<br>• Streams and functional interfaces<br>• Modules<br>• Concurrency basics<br><br>Aligned with the latest Oracle Java SE 21 (1Z0-830) exam format.<br><br>🎯 Why Use This App?<br><br>Designed specifically for 1Z0-830<br><br>Helps identify weak areas<br><br>Improve time management<br><br>Practice anywhere, anytime<br><br>Start practicing today and boost your confidence for the Java SE 21 certification exam!

## Rankings

- #1,822,254 — Overall

## Permissions and access

### Permissions

- `android.permission.ACCESS_ADSERVICES_AD_ID`
- `android.permission.ACCESS_ADSERVICES_ATTRIBUTION`
- `android.permission.ACCESS_ADSERVICES_TOPICS`
- `android.permission.ACCESS_NETWORK_STATE`
- `android.permission.FOREGROUND_SERVICE`
- `android.permission.INTERNET`
- `android.permission.WAKE_LOCK`
- `com.android.vending.CHECK_LICENSE`
- `com.certprep.javase21.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION`
- `com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE`
- `com.google.android.gms.permission.AD_ID`

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Source: [Chrome-Stats](https://chrome-stats.com/d/com.certprep.javase21)