jnidemo1.cpp

精通Java核心技术源代码

#include "JNIDemo1.h"
#include <string.h>
	
JNIEXPORT jint JNICALL Java_JNIDemo1_intMethod
(JNIEnv *env, jobject obj, jint num) 
{
	return num * num;
}
	 
JNIEXPORT jboolean JNICALL Java_JNIDemo1_booleanMethod
(JNIEnv *env, jobject obj, jboolean boolean) 
{
	return !boolean;
}
	
JNIEXPORT jstring JNICALL Java_JNIDemo1_stringMethod
(JNIEnv *env, jobject obj, jstring string) 
{
 	const char *str = env->GetStringUTFChars(string, 0);
 	char cap[128];
  	strcpy(cap, str);
   	env->ReleaseStringUTFChars(string, str);
   	return env->NewStringUTF(strupr(cap));
}
	
void main(){}