Data commit

Task/File-input-output/Java/file-input-output-1.java

@@ -0,0 +1,18 @@
+import java.io.*;
+
+public class FileIODemo {
+  public static void main(String[] args) {
+    try {
+      FileInputStream in = new FileInputStream("input.txt");
+      FileOutputStream out = new FileOutputStream("ouput.txt");
+      int c;
+      while ((c = in.read()) != -1) {
+        out.write(c);
+      }
+    } catch (FileNotFoundException e) {
+      e.printStackTrace();
+    } catch (IOException e){
+      e.printStackTrace();
+    }
+  }
+}

Task/File-input-output/Java/file-input-output-2.java

@@ -0,0 +1,30 @@
+import java.io.*;
+
+public class FileIODemo2 {
+  public static void main(String args[]) {
+    try {
+      // Probably should wrap with a BufferedInputStream
+      final InputStream in = new FileInputStream("input.txt");
+      try {
+        // Probably should wrap with a BufferedOutputStream
+        final OutputStream out = new FileOutputStream("output.txt");
+        try {
+          int c;
+          while ((c = in.read()) != -1) {
+            out.write(c);
+          }
+        }
+        finally {
+          out.close();
+        }
+      }
+      finally {
+        in.close();
+      }
+    } catch (FileNotFoundException e) {
+      e.printStackTrace();
+    } catch (IOException e){
+      e.printStackTrace();
+    }
+  }
+}

Task/File-input-output/Java/file-input-output-3.java

@@ -0,0 +1,26 @@
+import java.io.*;
+import java.nio.channels.*;
+
+public class FileIODemo3 {
+  public static void main(String args[]) {
+    try {
+      final FileChannel in = new FileInputStream("input.txt").getChannel();
+      try {
+        final FileChannel out = new FileOutputStream("output.txt").getChannel();
+        try {
+          out.transferFrom(in, 0, in.size());
+        }
+        finally {
+          out.close();
+        }
+      }
+      finally {
+        in.close();
+      }
+    }
+    catch (Exception e) {
+      System.err.println("Exception while trying to copy: "+e);
+      e.printStackTrace(); // stack trace of place where it happened
+    }
+  }
+}

Task/File-input-output/Java/file-input-output-4.java

@@ -0,0 +1,14 @@
+import java.io.*;
+public class Test {
+  public static void main (String[] args) throws IOException {
+    BufferedReader br = new BufferedReader(new FileReader("input.txt"));
+    BufferedWriter bw = new BufferedWriter(new FileWriter("output.txt"));
+    String line;
+    while ((line = br.readLine()) != null) {
+      bw.write(line);
+      bw.newLine();
+    }
+    br.close();
+    bw.close();
+  }
+}

Task/File-input-output/Java/file-input-output-5.java

@@ -0,0 +1,9 @@
+import java.nio.file.*;
+public class Copy{
+   public static void main(String[] args) throws Exception{
+      FileSystem fs = FileSystems.getDefault();
+      Path in = fs.getPath("input.txt");
+      Path out = fs.getPath("output.txt");
+      Files.copy(in, out, StandardCopyOption.REPLACE_EXISTING);
+   }
+}