lab done

src/main/java/rocks/zipcode/AlphaCharDocument.java

@@ -1,6 +1,8 @@
 package rocks.zipcode;
 
-import java.io.IOException;
+import java.io.*;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
 
 /**
  * @author leon on 16/11/2018.
@@ -12,9 +14,26 @@ public class AlphaCharDocument extends Document {
 
     @Override
     public void write(String contentToBeWritten) {
+
+        if (this.isAlpha(contentToBeWritten)==true){
+           super.write(contentToBeWritten);
+
+
+        }else{
+            throw  new  IllegalArgumentException();
+
+        }
+
+
     }
 
     private Boolean isAlpha(String s) {
-        return null;
+        Pattern pattern = Pattern.compile("[a-z]", Pattern.CASE_INSENSITIVE);
+        Matcher matcher = pattern.matcher(s);
+        boolean b = matcher.find();
+        return b;
+
+
+
     }
 }

src/main/java/rocks/zipcode/Document.java

@@ -1,9 +1,17 @@
 package rocks.zipcode;
 
 import java.io.*;
+import java.nio.charset.Charset;
+import java.nio.charset.StandardCharsets;
 import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.List;
+import java.util.Scanner;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
 
 /**
  * @author leon on 16/11/2018.
@@ -24,41 +32,151 @@ public class Document implements DocumentInterface {
 
     @Override
     public void write(String contentToBeWritten) {
+        try {
+            fileWriter.write(contentToBeWritten);
+            fileWriter.flush();
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+
+
     }
 
     @Override
     public void write(Integer lineNumber, String valueToBeWritten) {
+        List <String> lines = null;
+        try {
+            lines = Files.readAllLines(file.toPath());
+            lines.set(lineNumber,valueToBeWritten);
+            Files.write(file.toPath(), lines);
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+
     }
 
     @Override
     public String read(Integer lineNumber) {
-        return null;
+        String lineToBeRead= null;
+        try {
+            lineToBeRead = Files
+                    .readAllLines(Paths
+                            .get("target/file.txt"))
+                    .get(lineNumber);
+
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+        return lineToBeRead;
     }
 
     @Override
     public String read() {
-        return null;
+
+        StringBuilder builder = new StringBuilder();
+        try (BufferedReader br = new BufferedReader(new FileReader(file)))
+        {
+
+            String sCurrentLine;
+            while ((sCurrentLine = br.readLine()) != null)
+            {
+                builder.append(sCurrentLine).append("\n");
+            }
+        }
+        catch (IOException e)
+        {
+            e.printStackTrace();
+        }
+        return builder.toString().trim();
+
+
+
+//        try{
+//            return new String (Files.readAllBytes(Paths.get(file.getName())));
+//        } catch (IOException e) {
+//            e.printStackTrace();
+//            return null;
+//        }
+
     }
 
     @Override
     public void replaceAll(String stringToReplace, String replacementString) {
+        Path path = Paths.get("target/file.txt");
+        Charset charset = StandardCharsets.UTF_8;
+
+        String content = null;
+        try {
+            content = new String(Files.readAllBytes(path), charset);
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+        content = content.replaceAll(stringToReplace, replacementString);
+        try {
+            Files.write(path, content.getBytes(charset));
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+
     }
 
     @Override
     public void overWrite(String content) {
+        try {
+            Writer fileWriter = new FileWriter("target/file.txt", false);
+            write(content);
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+
     }
 
     public List<String> toList() {
-        return null;
+        Scanner s = null;
+        try {
+            s = new Scanner(new File("target/file.txt"));
+        } catch (FileNotFoundException e) {
+            e.printStackTrace();
+        }
+        ArrayList<String> list = new ArrayList<>();
+        while (s.hasNext()){
+            list.add(s.next());
+        }
+        s.close();
+
+
+
+        return list;
     }
 
     @Override
     public File getFile() {
-        return null;
+         File f = new File("target/file.txt");
+         return  file;
+
     }
 
     @Override
     public String toString() {
-        return null;
+         String fileName = "target/file.txt";
+        String content = "";
+
+        try
+        {
+            content = new String ( Files.readAllBytes( Paths.get("target/file.txt") ) );
+
+        }
+        catch (IOException e)
+        {
+            e.printStackTrace();
+        }
+        StringBuilder builder = new StringBuilder(fileName)
+                .append('{')
+                .append(content)
+                .append('}');
+
+
+        return builder.toString();
+
     }
 }

src/main/java/rocks/zipcode/NumericCharDocument.java

@@ -1,6 +1,8 @@
 package rocks.zipcode;
 
 import java.io.IOException;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
 
 /**
  * @author leon on 16/11/2018.
@@ -12,9 +14,23 @@ public class NumericCharDocument extends Document {
 
     @Override
     public void write(String contentToBeWritten) {
+        if (this.isNumeric(contentToBeWritten)){
+            super.write(contentToBeWritten);
+
+
+        }else{
+            throw  new  IllegalArgumentException();
+
+        }
+
     }
 
     private Boolean isNumeric(String s) {
-        return null;
+
+        Pattern pattern = Pattern.compile("[0-9]");
+        Matcher matcher =pattern.matcher(s);
+        boolean b = matcher.find();
+        return b;
+
     }
 }

src/main/java/rocks/zipcode/SpecialCharDocument.java

@@ -1,6 +1,10 @@
 package rocks.zipcode;
 
+import java.io.BufferedWriter;
+import java.io.FileWriter;
 import java.io.IOException;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
 
 /**
  * @author leon on 18/11/2018.
@@ -12,9 +16,20 @@ public class SpecialCharDocument extends Document {
 
     @Override
     public void write(String contentToBeWritten) {
+        if (this.isSpecialCharacters(contentToBeWritten)){
+            super.write(contentToBeWritten);
+        }else{
+            throw new IllegalArgumentException();
+        }
+
+
     }
 
     private Boolean isSpecialCharacters(String s) {
-        return null;
+        Pattern pattern = Pattern.compile("[$&+,:;=?@#|'<>.^*()%!-]");
+        Matcher matcher =pattern.matcher(s);
+        boolean b = matcher.find();
+        return b;
+
     }
 }