The Java Native Interface (JNI) a programming framework that enables Java code running in a Java Virtual Machine (JVM) to call and be called by[1] native applications (programs specific to a hardware and operating system platform) and libraries written in other languages such as C, C++ and assembly.One can check the availability of the job across cities including Mumbai, Delhi, Bangalore, Pune and Hyderabad. Java Garbage Collection role consists of high knowledge and proficient in creating solutions to issues that are repeatable. Wisdomjobs has interview questions which are exclusively designed for job seekers to assist them in clearing job interviews. Java Native Interface (JNI) interview questions are useful for developers to attend job interviews and get selected for job.
Question 1. What Is Native Interface In Java?
Answer :
JNI is the mechanism used to invoke methods written in languages such as c and C++. You can write code using language like c and c++ and declare its native methods and can use the same method in java using JNI.
JNI exposes JNI functions and pointers that can access java objects and methods.
Question 2. Are There Jvm’s That Work As A True 64-bit Application?
Answer :
IBM’s SDK for Windows on Itanium Solaris TM-SPARCTM platform edition of J2SDK 1.4.0 CACAO is 64 bit just-in-time (JIT) compiler for Java.
Question 3. Define Jni Functions And Pointers?
Answer :
JNI functions are those which are used by the developers to interact with JVM within a native method. Every JNI function receives a special parameter as its first argument – JNIEnv ; which points to a special JNI data structure of the type JNIEnv_ . One of the elements of JNI data structure is a ‘pointer to an array’ generated by JVM, and each element of this array is again a pointer to a JNI function.
A JNI function can be invoked from the native method by referencing these pointers. Every JVM provides a unique implementation of the JNI functions.
Answer :
SWT is the software component (part of the Eclipse IDE Framework) that delivers native widget functionality for the Eclipse platform in an operating.
Question 5. Explain The Advantages And Disadvantages Of Using Jni?
Answer :
Advantages of JNI
Disadvantages of JNI
Answer :
JNI stands for Java Native Interface. It is an interface between Java, applications and libraries that are written in other languages. JNI is solely used to interact with “native” code (code written in system level language such as C). For instance, JNI enables the usage of C libraries and C programs to be used in Java programs.
Answer :
The Java/Win32 integration project is free, open source architecture for interoperation between Java and components exposed through Microsoft.
Question 8. Explain Exception Handling In Jni?
Answer :
JNI exceptions are handled by using the following:
Answer :
You can use JManager API or JBindery to do so. Here’s an article that shows you how to create a wrapper program around a Java application:
Question 10. Is There A Tcl-java Bridge?
Answer :
Yes, The Tcl/Java project currently has two packages, Jacl and Tcl Blend. Jacl, which stands for Java Command Language, is a Java implementation of Tcl…
Answer :
JPE (Java-Python Extension) is an open-source effort for seamless inter-operability between Java and Python. Java-Python Extension main site JPE.
Question 12. Is There An Alternative To Jni On Macos?
Answer :
If you want to call Mac OS C code from your Java code, there are currently two mechanisms for doing so: JDirect2 and the Java Native Interface (JNI).
Java Native Interface (JNI) Related Tutorials |
|
---|---|
Adv Java Tutorial | J2EE Tutorial |
Core Java Tutorial | JSP Tutorial |
Java-Springs Tutorial | Java Tutorial |
Java 8 Tutorial |
Java Native Interface (JNI) Related Practice Tests |
|
---|---|
Adv Java Practice Tests | J2EE Practice Tests |
Core Java Practice Tests | JSP Practice Tests |
Java-Springs Practice Tests | JMS(Java Message Service) Practice Tests |
Java applet Practice Tests | Java 8 Practice Tests |
All rights reserved © 2020 Wisdom IT Services India Pvt. Ltd
Wisdomjobs.com is one of the best job search sites in India.