Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

I got a peoblem with my JDK and I can't run the the code so can i have the output for these three method using

I got a peoblem with my JDK and I can't run the the code so can i have the output for these
three method using JNI :
1- original character array
2- encrypted character array
3- decrypted character array
java cod:
public class CaesarCipher {
// Load the shared library
static {
System.loadLibrary("CaesarCipherLib");
}
// Native method to create a character array from user input
public native char[] createCharArray(String input);
// Native method to perform Caesar Cipher encryption
public native char[] encrypt(char[] original, int key);
// Native method to perform Caesar Cipher decryption
public native char[] decrypt(char[] encrypted, int key);
// Main method for testing
public static void main(String[] args){
CaesarCipher cipher = new CaesarCipher();
// Test createCharArray
char[] originalArray = cipher.createCharArray("HelloWorld");
System.out.println("Original Array: "+ new String(originalArray));
// Test encrypt
int encryptionKey =3;
char[] encryptedArray = cipher.encrypt(originalArray, encryptionKey);
System.out.println("Encrypted Array: "+ new String(encryptedArray));
// Test decrypt
int decryptionKey =3;
char[] decryptedArray = cipher.decrypt(encryptedArray, decryptionKey);
System.out.println("Decrypted Array: "+ new String(decryptedArray));
}
}
c++ code:
#include
JNIEXPORT jcharArray JNICALL Java_CaesarCipher_createCharArray(JNIEnv *env, jobject obj, jstring input){
const char *inputStr =(*env)->GetStringUTFChars(env, input, 0);
// Create a character array
int length =(*env)->GetStringUTFLength(env, input);
jcharArray charArray =(*env)->NewCharArray(env, length);
jchar *chars =(*env)->GetCharArrayElements(env, charArray, NULL);
// Copy the input string to the character array
for (int i =0; i < length; i++){
chars[i]= inputStr[i];
}
// Release resources
(*env)->ReleaseStringUTFChars(env, input, inputStr);
(*env)->ReleaseCharArrayElements(env, charArray, chars, 0);
return charArray;
}
JNIEXPORT jcharArray JNICALL Java_CaesarCipher_encrypt(JNIEnv *env, jobject obj, jcharArray original, jint key){
// Perform Caesar Cipher encryption
//...
return original; // Placeholder, replace with actual implementation
}
JNIEXPORT jcharArray JNICALL Java_CaesarCipher_decrypt(JNIEnv *env, jobject obj, jcharArray encrypted, jint key){
// Perform Caesar Cipher decryption
//...
return encrypted; // Placeholder, replace with actual implementation
}

Step by Step Solution

There are 3 Steps involved in it

Step: 1

blur-text-image

Get Instant Access to Expert-Tailored Solutions

See step-by-step solutions with expert insights and AI powered tools for academic success

Step: 2

blur-text-image_2

Step: 3

blur-text-image_3

Ace Your Homework with AI

Get the answers you need in no time with our AI-driven, step-by-step assistance

Get Started

Recommended Textbook for

Inference Control In Statistical Databases From Theory To Practice Lncs 2316

Authors: Josep Domingo-Ferrer

2002nd Edition

3540436146, 978-3540436140

More Books

Students also viewed these Databases questions

Question

c. What were you expected to do when you grew up?

Answered: 1 week ago

Question

4. Describe how cultural values influence communication.

Answered: 1 week ago

Question

3. Identify and describe nine cultural value orientations.

Answered: 1 week ago