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store int value into variable 1 istore_2 3d 0011 1101 value → store int value into variable 2 istore_3 3e 0011 1110 value → store int value into variable 3 isub 64 0110 0100 value1, value2 → result int subtract iushr 7c 0111 1100 value1, value2 → result int logical shift right ixor 82 1000 0010 value1, value2 → result int xor jsr † a8
Programming languages typically avoid or restrict asynchronous exception handling, for example C++ forbids raising exceptions from signal handlers, and Java has deprecated the use of its ThreadDeath exception that was used to allow one thread to stop another one. [52]
When generics were added to Java 5.0, there was already a large framework of classes (many of which were already deprecated), so generics were implemented using type erasure to allow for migration compatibility and re-use of these existing classes. This limited the features that could be provided, compared to other languages. [2] [3]
The Java language has undergone several changes since JDK 1.0 as well as numerous additions of classes and packages to the standard library.Since J2SE 1.4, the evolution of the Java language has been governed by the Java Community Process (JCP), which uses Java Specification Requests (JSRs) to propose and specify additions and changes to the Java platform.
The Java platform has various ad-hoc annotation mechanisms—for example, the transient modifier, or the @Deprecated javadoc tag. The Java Specification Request JSR-175 introduced the general-purpose annotation (also known as metadata) facility to the Java Community Process in 2002; it gained approval in September 2004.
An early documented usage of "deprecate" in this sense is in Usenet posts in 1984, referring to obsolete features in 4.2BSD and the C programming language. [2] An expanded definition of "deprecate" was cited in the Jargon File in its 1991 revision, [3] and similar definitions are found in commercial software documentation from 2014 [1] and 2023 ...
In Java, any method can call System.exit(int status), unless a security manager does not permit it.This will terminate the currently running Java Virtual Machine. "The argument serves as a status code; by convention, a nonzero status code indicates abnormal termination."
java.nio (NIO stands for New Input/Output [1] [2]) is a collection of Java programming language APIs that offer features for intensive I/O operations. It was introduced with the J2SE 1.4 release of Java by Sun Microsystems to complement an existing standard I/O. NIO was developed under the Java Community Process as JSR 51. [3]