Program 5.3

SaketJNU · SaketJNU · commit 7970e0a51942 · 2025-05-28T14:37:39.000+05:30
diff --git a/ucer/4B4/5_3.java b/ucer/4B4/5_3.java
@@ -0,0 +1,59 @@
+import java.io.*;
+
+class FileMerge {
+
+    public static void mergeFiles(String file1, String file2, String mergedFile) {
+        BufferedReader reader1 = null;
+        BufferedReader reader2 = null;
+        BufferedWriter writer = null;
+
+        try {
+            // Create readers for input files
+            reader1 = new BufferedReader(new FileReader(file1));
+            reader2 = new BufferedReader(new FileReader(file2));
+
+            // Create writer for output file
+            writer = new BufferedWriter(new FileWriter(mergedFile));
+
+            String line;
+
+            // Read from first file and write to merged file
+            while ((line = reader1.readLine()) != null) {
+                writer.write(line);
+                writer.newLine();
+            }
+
+            // Read from second file and write to merged file
+            while ((line = reader2.readLine()) != null) {
+                writer.write(line);
+                writer.newLine();
+            }
+
+            System.out.println("Files merged successfully into: " + mergedFile);
+
+        } catch (FileNotFoundException e) {
+            System.out.println("Error: One of the input files was not found.");
+        } catch (IOException e) {
+            System.out.println("Error reading or writing files: " + e.getMessage());
+        } finally {
+            // Close all resources safely
+            try {
+                if (reader1 != null) reader1.close();
+                if (reader2 != null) reader2.close();
+                if (writer != null) writer.close();
+            } catch (IOException e) {
+                System.out.println("Error closing files: " + e.getMessage());
+            }
+        }
+    }
+
+    public static void main(String[] args) {
+        // Replace these with your actual file paths or names
+        String inputFile1 = "file1.txt";
+        String inputFile2 = "file2.txt";
+        String outputFile = "merged_output.txt";
+
+        mergeFiles(inputFile1, inputFile2, outputFile);
+    }
+}
+
diff --git a/ucer/4B4/file1.txt b/ucer/4B4/file1.txt
@@ -0,0 +1 @@
+This is a Java Lab.
diff --git a/ucer/4B4/file2.txt b/ucer/4B4/file2.txt
@@ -0,0 +1 @@
+Here, we will learn java programs.
