answersLogoWhite

0

What is JNI?

Updated: 10/18/2022
User Avatar

Wiki User

14y ago

Best Answer

Java Native Interface

JNI is an interface between java and applications and libraries written in other languages.

As an example, JNI enables Java programs to use C libraries and also enables C programs to use Java classes.

User Avatar

Wiki User

14y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: What is JNI?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Continue Learning about Engineering

What does N stand for in JNI?

Native Rajendra Dewani


Is it possible to write a program in Java and partly in C?

Yes, that's what JNI is good for.


How do you use Java Native Interface to access Delphi code from Java classes?

The Delphi code would need to be compiled into a DLL, and the DLL is then called from java using the JNI. See http://home.pacifier.com/~mmead/jni/delphi/JavaToDPR/ to get started.


How do you use C plus plus code in Java Program?

You don't. There are two possible workarounds.Use the Java Native Interface (JNI). JNI code resembles C-style code and is able to be compiled in the native machine language of the underlying system. This is a rather complicated solution, and is not ideal for a "quick fix."Write your C++ code like normal, compile it, and use Java code to call your compiled code. You can use the Runtime.getRuntime().exec() methods to accomplish this.


Why can't a c plus plus class be derived from a Java class?

A C++ class cannot be directly derived from a Java class because C++ and Java are two distinct programming languages with different object-oriented models and memory management systems. Here are some reasons why direct inheritance between C++ and Java classes is not feasible: Language Syntax and Semantics: Syntax Differences: C++ and Java have different syntax rules and conventions. For example, C++ uses pointers extensively, while Java relies on references. The way classes are declared, constructors and destructors are defined, and methods are called is different in the two languages. Memory Management: Java uses automatic memory management (garbage collection) to manage memory, while C++ allows manual memory management using pointers and explicit memory deallocation. These differences make it challenging to reconcile memory management approaches in inheritance. Runtime Environment: JVM vs. Native Code: Java code is executed in a Java Virtual Machine (JVM), which abstracts the underlying hardware. C++ compiles to native machine code. Inheriting a Java class in C++ would require bridging the gap between the JVM and native code, which is a complex task. Platform Dependencies: Platform-Specific Code: C++ and Java applications are compiled for specific platforms. Inheriting a Java class in C++ would lead to platform-specific issues, as the two languages are not designed to interoperate seamlessly at the class level. Type System: Strong vs. Weak Typing: Java has a strong, statically-typed system where types are checked at compile-time. C++ has a more flexible, statically-typed system with additional features like operator overloading and multiple inheritance. This difference in type systems makes direct inheritance challenging. Standard Libraries: Standard Libraries: Java and C++ have different standard libraries and core classes. Inheriting a Java class in C++ would require translating Java-specific classes and methods into their C++ equivalents, which is a non-trivial task. Garbage Collection: Garbage Collection: Java's automatic garbage collection conflicts with C++'s manual memory management. Mixing the two in an inheritance hierarchy could lead to memory leaks and undefined behavior. In summary, while it is possible to create systems that allow communication between Java and C++ components (e.g., using JNI - Java Native Interface), directly inheriting a Java class in C++ or vice versa is impractical and fraught with complexities due to the fundamental differences in the two languages' design and execution environments. "AchieversIT" can provide training in both Java and C++ to help you understand these languages in-depth and explore ways to integrate them when necessary.

Related questions

What does N stand for in JNI?

Native Rajendra Dewani


What is the airport code for Junín Airport?

The airport code for Junín Airport is JNI.


Is it possible to write a program in Java and partly in C?

Yes, that's what JNI is good for.


How do you use Java Native Interface to access Delphi code from Java classes?

The Delphi code would need to be compiled into a DLL, and the DLL is then called from java using the JNI. See http://home.pacifier.com/~mmead/jni/delphi/JavaToDPR/ to get started.


Program for finding the current workload of PC using java?

There is no way to do this in Java without using either JNI calls or executing an outside, platform-specific program.


What has the author Rob Gordon written?

Rob Gordon has written: 'Essential Jni' -- subject(s): Java (Computer program language), Application software 'Essential JMF' -- subject(s): Java (Computer program language), Internet programming


During the SMB dialogue nagotiation which proposal index indicates it is windows?

I get a error every time i try to open the Modpacks: DreamCraft 2, Crazy Craft 2.2 and Jurassic Craft 2 i get the error " Error: A JNI Error has occured, please check your installation and try again. I tried reinstalling java, getting different versions of java and reinstalling the modpack but none of this worked. HELP! -NovaInsanity (Also This Is For The Voidsrath Minecraft Modpack Launcher)


Who crashed the Titanic?

It was J. Bruce Ismay. As the Titanic was heading towards the iceberg he convinced the Captain to go faster so they could arrive in New York quicker. J. Bruce Ismay selfishly joined a lifeboat as the ship was sinking. As the Managing Director of White Star Line, he reduced the number of lifeboats on the ship from 48 to 16 leaving many of the precious lifes to perish.


How do you use C plus plus code in Java Program?

You don't. There are two possible workarounds.Use the Java Native Interface (JNI). JNI code resembles C-style code and is able to be compiled in the native machine language of the underlying system. This is a rather complicated solution, and is not ideal for a "quick fix."Write your C++ code like normal, compile it, and use Java code to call your compiled code. You can use the Runtime.getRuntime().exec() methods to accomplish this.


Why can't a c plus plus class be derived from a Java class?

A C++ class cannot be directly derived from a Java class because C++ and Java are two distinct programming languages with different object-oriented models and memory management systems. Here are some reasons why direct inheritance between C++ and Java classes is not feasible: Language Syntax and Semantics: Syntax Differences: C++ and Java have different syntax rules and conventions. For example, C++ uses pointers extensively, while Java relies on references. The way classes are declared, constructors and destructors are defined, and methods are called is different in the two languages. Memory Management: Java uses automatic memory management (garbage collection) to manage memory, while C++ allows manual memory management using pointers and explicit memory deallocation. These differences make it challenging to reconcile memory management approaches in inheritance. Runtime Environment: JVM vs. Native Code: Java code is executed in a Java Virtual Machine (JVM), which abstracts the underlying hardware. C++ compiles to native machine code. Inheriting a Java class in C++ would require bridging the gap between the JVM and native code, which is a complex task. Platform Dependencies: Platform-Specific Code: C++ and Java applications are compiled for specific platforms. Inheriting a Java class in C++ would lead to platform-specific issues, as the two languages are not designed to interoperate seamlessly at the class level. Type System: Strong vs. Weak Typing: Java has a strong, statically-typed system where types are checked at compile-time. C++ has a more flexible, statically-typed system with additional features like operator overloading and multiple inheritance. This difference in type systems makes direct inheritance challenging. Standard Libraries: Standard Libraries: Java and C++ have different standard libraries and core classes. Inheriting a Java class in C++ would require translating Java-specific classes and methods into their C++ equivalents, which is a non-trivial task. Garbage Collection: Garbage Collection: Java's automatic garbage collection conflicts with C++'s manual memory management. Mixing the two in an inheritance hierarchy could lead to memory leaks and undefined behavior. In summary, while it is possible to create systems that allow communication between Java and C++ components (e.g., using JNI - Java Native Interface), directly inheriting a Java class in C++ or vice versa is impractical and fraught with complexities due to the fundamental differences in the two languages' design and execution environments. "AchieversIT" can provide training in both Java and C++ to help you understand these languages in-depth and explore ways to integrate them when necessary.


Java language is developed in which programming language?

C language is developed by Dennis Ritchie at Bell Laboratories in 1972. To know more about C Programming and to learn C Programming from basics to advance with lot of examples visit codeforhunger .