jni jnienv NewStringUTF example c c++ java

NewStringUTF

jstring NewStringUTF(JNIEnv *env, const char *bytes);

Constructs a new java.lang.String object from an array of characters in modified UTF-8 encoding.

LINKAGE:

Index 167 in the JNIEnv interface function table.

PARAMETERS of NewStringUTF

env: the JNI interface pointer.

bytes: the pointer to a modified UTF-8 string.

RETURNS of NewStringUTF

Returns a Java string object, or NULL if the string cannot be constructed.

THROWS:

OutOfMemoryError: if the system runs out of memory.

Example of NewStringUTF

extern "C" jstring 
Java_com_example_ndk_MainActivity_stringFromJNI( JNIEnv* env,
                                                 jobject thiz)
{
    return (*env)->NewStringUTF(env, "Hello from JNI !");
}