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Update Crypto.java #24

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83e34e5
Update Crypto.java
Jelbock Mar 14, 2019
0be2863
Update Crypto.java
Jelbock Mar 14, 2019
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144 changes: 139 additions & 5 deletions src/crypto/Crypto.java
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Original file line number Diff line number Diff line change
@@ -1,10 +1,144 @@
package crypto;

import java.io.*;
import java.nio.charset.StandardCharsets;
import java.util.Arrays;
import java.util.Collections;
import java.util.HashMap;
import java.util.Scanner;

public class Crypto {
public class Crypto4 {
static String operation="";
static String inputText="";
static int key=0;
static String sKey="";
static String inputFile="";
static String outputFile="";

public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
// write your code here
/* for (int i = 0; i < args.length; i++){
System.out.println(args[i]);}*/
HashMap<String, String> hm = new HashMap();
for (int i = 0; i < args.length; i++) {
if ("-mode".equals(args[i])) {
if (args.length >= i + 1 && ("enc".equals(args[i + 1])) || "dec".equals(args[i + 1])) {
hm.put(args[i], args[i + 1]);
} else {
hm.put(args[i], "enc");
}
}
if ("-key".equals(args[i]) && args.length >= i + 1 && !"-data".equals(args[i + 1])) {
hm.put(args[i], args[i + 1]);
}
if ("-data".equals(args[i]) && args.length >= i + 1 && !"-in".equals(args[i + 1]) && !"-out".equals(args[i + 1])) {
hm.put(args[i], args[i + 1]);
}/* else {
Scanner scanner = new Scanner(System.in);
System.out.println("Enter data: ");
if (scanner.hasNextLine()) {
inputText = scanner.nextLine();
}
System.out.println("Enter key: ");
if (scanner.hasNextLine()) {
sKey = scanner.nextLine();
}
hm.put("-data", inputText);
hm.put("-key", sKey);
}*/
if ("-in".equals(args[i]) && args.length >= i + 1 && !"-out".equals(args[i + 1])) {
hm.put(args[i], args[i + 1]);
inputFile=args[i+1];
}/* else if (args.length < i + 1) {
Scanner scanner = new Scanner(System.in);
if (scanner.hasNextLine()) {
System.out.println("Enter inputFile: ");
inputFile = scanner.nextLine();
}
hm.put("-in", inputFile);

}*/
if ("-out".equals(args[i]) && args.length >= i + 1) {
hm.put(args[i], args[i + 1]);
}}
System.out.println(Arrays.asList(hm));
//System.out.println(Collections.singletonList(hm));
if (!hm.containsKey("-data")){
Scanner scanner = new Scanner(System.in);
System.out.println("Enter data: ");
if (scanner.hasNextLine()) {
inputText = scanner.nextLine();
}
System.out.println("Enter key: ");
if (scanner.hasNextLine()) {
sKey = scanner.nextLine();
}
hm.put("-data", inputText);
hm.put("-key", sKey);
}
if (!hm.containsKey("-in")){
Scanner scanner = new Scanner(System.in);
if (scanner.hasNextLine()) {
System.out.println("Enter inputFile: ");
inputFile = scanner.nextLine();
}
hm.put("-in", inputFile);
}
if (!hm.containsKey("-out")){
hm.put("-out",outputFile);
}
//System.out.println(Arrays.asList(hm));
try {
key = Integer.parseInt(hm.get("-key"));
} catch (NullPointerException e) {
}
inputFile=hm.get("-in");
outputFile=hm.get("-out");
if ("enc".equals(hm.get("-mode"))) {
encrypt(hm.get("-data"), key, inputFile, outputFile);
} else if ("dec".equals(hm.get("-mode"))) {
decrypt(hm.get("-data"), key, inputFile, outputFile);
}

}
//public static void encrypt(String text, int key, String inFile, String outFile) {
char[] charText = text.toCharArray();
for (int i = 0; i < charText.length; i++) {
char tmp = (char) (charText[i]+key);
charText[i] = tmp;
}
String encryptText = new String(charText);
if("".equals(outFile)){
System.out.println(encryptText);
}else{
try(BufferedReader reader = new BufferedReader(new InputStreamReader(new FileInputStream("C:\\Java Junior\\Code\\4.Junior-Maven-CSS\\Main\\src\\"+inFile), StandardCharsets.UTF_8));
BufferedWriter writer = new BufferedWriter(new OutputStreamWriter(new FileOutputStream("C:\\Java Junior\\Code\\4.Junior-Maven-CSS\\Main\\src\\"+outFile), StandardCharsets.UTF_8));){
int i;
while((i=reader.read())!=-1){
writer.write(i+key);
}
}catch (IOException e){
e.printStackTrace();
}
}
}
public static void decrypt(String text, int key, String inFile, String outFile) {
char[] charText = text.toCharArray();
for (int i = 0; i < charText.length; i++) {
char tmp = (char) (charText[i]-key);
charText[i] = tmp;
}
String decryptText = new String(charText);
if("".equals(outFile)){
System.out.println(decryptText);
}else{
try(BufferedReader reader = new BufferedReader(new InputStreamReader(new FileInputStream("C:\\Java Junior\\Code\\4.Junior-Maven-CSS\\Main\\src\\"+inFile), StandardCharsets.UTF_8));
BufferedWriter writer = new BufferedWriter(new OutputStreamWriter(new FileOutputStream("C:\\Java Junior\\Code\\4.Junior-Maven-CSS\\Main\\src\\"+outFile), StandardCharsets.UTF_8));){
int i;
while((i=reader.read())!=-1){
writer.write(i-key);
}
}catch (IOException e){
e.printStackTrace();
}
}
}
}