Flash cards
Review the key moves
1/4
Core idea
What is the main idea behind Java native Keyword?
Lesson checks
Practice each idea before moving on
Short Mimo-style checks built from this lesson's code, terms, and sequence.
1Quick choice
Which statement best captures the main point of this lesson?
2Fill blank
Complete the missing token from the example code.
___ Main {3Order
Put the learning moves in the order that makes the concept easiest to apply.
Load a method from a compiled library:
Definition and Usage
Java native Keyword
❮ Java Keywords
Example
Load a method from a compiled library:
class Main {
static {
System.loadLibrary("libraryname");
}
public static void main(String[] args) {
test();
}
private static native void test();
}Definition and Usage
The native keyword declares a method as belonging to an external compiled library which is native to the operating system.
In order to use native methods, an external library must be loaded from a .dll , .so or similar kind of file. The compiled code in the external file should be written to support the Java Native Interface.
❮ Java Keywords