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In software engineering, double-checked locking (also known as "double-checked locking optimization" [1]) is a software design pattern used to reduce the overhead of acquiring a lock by testing the locking criterion (the "lock hint") before acquiring the lock. Locking occurs only if the locking criterion check indicates that locking is required.
Android 13 is the thirteenth major release and the 20th version of Android, the mobile operating system developed by the Open Handset Alliance led by Google. It was released to the public and the Android Open Source Project (AOSP) on August 15, 2022. [ 2 ]
This article compares the application programming interfaces (APIs) and virtual machines (VMs) of the programming language Java and operating system Android.. While most Android applications are written in Java-like language, there are some differences between the Java API and the Android API, and Android does not run Java bytecode by a traditional Java virtual machine (JVM), but instead by a ...
A Dalvik-powered phone. The relative merits of stack machines versus register-based approaches are a subject of ongoing debate. [17]Generally, stack-based machines must use instructions to load data on the stack and manipulate that data, and, thus, require more instructions than register machines to implement the same high-level code, but the instructions in a register machine must encode the ...
Unlocking the bootloader allows installing and running unsigned code on a device, including user customized software. Operating outside the manufacturer specification might usually result in voiding any warranties and may make the device susceptible to data theft, as the integrity of the operating system (as intended by the manufacturer) can no longer be guaranteed. [1]
The Java language is a key pillar in Android, an open source mobile operating system. Although Android, built on the Linux kernel, is written largely in C, the Android SDK uses the Java language as the basis for Android applications but does not use any of its standard GUI, SE, ME or other established Java standards. [83]
Good Lock (Korean: 굿락) is a software suite to tweak and customize the user interface and experience on Samsung Galaxy devices. [1] It is developed by Good Lock Labs in cooperation with Samsung, and can be downloaded from the Galaxy Store .
This version changed the numbering scheme to be independent from the underlying Android OS version. 1.1 (5.1.1W1) [50] 5.1.1 Lollipop May 2015 Wi-Fi support (for watches with built-in Wi-Fi) Drawable Emojis (as response to messages) Heads up notifications; Pattern lock screen; Ability to change font size; Add swipe left from watch face to ...