www.pudn.com > jniexamples.zip > ObjectArrayTest.c

#include 
#include 
#include "ObjectArrayTest.h"

JNIEXPORT jobjectArray JNICALL 
Java_ObjectArrayTest_initInt2DArray(JNIEnv *env, 
                                   jclass cls, 
                                   jint size) 
{ 
    jobjectArray result; 
    int i; 
    jclass intArrCls = (*env)->FindClass(env, "[I"); 
    if (intArrCls == NULL) { 
        return NULL; /* exception thrown */ 
    } 
    result = (*env)->NewObjectArray(env, size, intArrCls, NULL); 
    if (result == NULL) { 
        return NULL; /* out of memory error thrown */ 
    } 
    for (i = 0; i < size; i++) { 
        jint tmp[256];  /* make sure it is large enough! */ 
        int j; 
        jintArray iarr = (*env)->NewIntArray(env, size); 
        if (iarr == NULL) { 
            return NULL; /* out of memory error thrown */ 
        } 
        for (j = 0; j < size; j++) { 
            tmp[j] = i + j; 
        } 
        (*env)->SetIntArrayRegion(env, iarr, 0, size, tmp); 
        (*env)->SetObjectArrayElement(env, result, i, iarr); 
        (*env)->DeleteLocalRef(env, iarr); 
    } 
    return result; 
}