how to use jni in sarge

[Serena Cantor <qipaishi2006@yahoo.com>]

I have installed gcc and jdk1.4 at /usr/local

Which gcc command can generate shared library?

below is java anc C code:


//

class firstJNI
{
    public native void displayHelloWorld();
    public native void displayOther();
    private native String getLine(String prompt);

    static {
//     System.loadLibrary("firstJNI");//This is firstJNI.DLL
//     *if generated by borland
     System.loadLibrary("firstjni");//This is firstjni.dll
//     */
    }
    
     public static void main(String[] args) 
        {
    firstJNI JN=new firstJNI();
        JN.displayHelloWorld();
    JN.displayOther();
        
        String input = JN.getLine("Enter Some Thing "); 
    System.out.println("You Entered " + input); 

        }
}













/*firstJNI.c*/
#include <jni.h>
#include "firstJNI.h"
#include <stdio.h>


JNIEXPORT void JNICALL 
Java_firstJNI_displayHelloWorld(JNIEnv *env, jobject obj) 
{
    printf("Hello world! This DLL was generated using Borland Compiler \n");
    return;
}


JNIEXPORT void JNICALL 
Java_firstJNI_displayOther(JNIEnv *env, jobject obj) 
{

printf("Hello world! This is Other Function. This DLL was generated using Borland Compiler \n");
    
}

  
JNIEXPORT jstring JNICALL
Java_firstJNI_getLine(JNIEnv *env, jobject obj, jstring enter)
{
    char buf[128];
    const char *str = (*env)->GetStringUTFChars(env, enter, 0);
    printf("%s", str);
    (*env)->ReleaseStringUTFChars(env, enter, str);

    scanf("%s", buf);
    return (*env)->NewStringUTF(env, buf);

}




 
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