- Running tasks concurrently on multiple threads
- addToBackStack (FragmentTransaction)
- getSystemService (Context)
- putExtra (Intent)
- Collections (java.util)
This class consists exclusively of static methods that operate on or return
collections. It contains
- ThreadPoolExecutor (java.util.concurrent)
An ExecutorService that executes each submitted task using one of possibly
several pooled threads, n
- Cipher (javax.crypto)
This class provides access to implementations of cryptographic ciphers for
encryption and decryption
- StringUtils (org.apache.commons.lang)
Operations on java.lang.String that arenull safe.
* IsEmpty/IsBlank - checks if a String contains
- Rectangle (java.awt)
A Rectangle specifies an area in a coordinate space that is enclosed by the
Rectangle object's top-
- Modifier (javassist)
The Modifier class provides static methods and constants to decode class and
member access modifiers
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