#include <stdio.h>#include <string.h>#include <stdlib.h>#include "MyTest.h"JNIEXPORT jint JNICALL Java_MyTest_getLine(JNIEnv *env, jobject obj, jstring s, jint len){	int i, j;	jsize strlen;	char *str;	const jchar * newstring;		i = 0;		str = (char *)(*env)->GetStringUTFChars(env, s, 0); 	strlen = (*env)->GetStringLength(env,s);		if (strlen != len) {	   return(-1);	}	newstring = (*env)->GetStringChars(env, s, 0);	// change the integer 	j = 0;	for (i = 0; i < 10; i++) {		len = len + i;		j = len;	}	(*env)->ReleaseStringUTFChars(env, s, str);	(*env)->ReleaseStringChars(env, s, (const jchar*)newstring);	return(j);}