Added FileIO in Java

Shehani009 · Oct 13, 2019 · e5a884b · e5a884b
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diff --git a/archive/j/java/FileIo.java b/archive/j/java/FileIo.java
@@ -0,0 +1,65 @@
+import java.io.BufferedReader;
+import java.io.File;
+import java.io.FileNotFoundException;
+import java.io.FileReader;
+import java.io.FileWriter;
+import java.io.IOException;
+
+public class FileIo {
+
+	public static void main(String[] args) {
+
+		// create a new file output.txt
+		File file =new File("output.txt");
+
+		//method to open a file and add contents
+		writeToFile(file);
+		//method to open the file and print its content line by line
+		readFile(file);
+
+	}
+
+	public static void readFile(File file) {
+
+		try {
+
+			BufferedReader buffer=new BufferedReader(new FileReader(file));
+			try {
+				String nextLine=buffer.readLine();// read the file one line at a time
+				while(nextLine!=null) {
+					//display the line on the screen
+					System.out.println(nextLine);
+					nextLine=buffer.readLine(); // read the next line to print
+				}
+				buffer.close();
+			} catch (IOException e) {
+
+				System.out.println("Error occurred while reading the file");
+			} 
+
+		} catch (FileNotFoundException e) {
+
+			System.out.println("Error occurred while opening the file!");
+		}
+
+	}
+
+	public static void writeToFile(File file) {
+
+		String content = "We wish you a Merry Christmas\n" + 
+				"We wish you a Merry Christmas\n" + 
+				"We wish you a Merry Christmas\n" + 
+				"And a happy New Year.";
+		try {
+			FileWriter writer = new FileWriter(file);
+			writer.write(content); 
+			writer.close(); // closes the file
+		} catch (IOException e) {
+
+			System.out.println("Error occurred while writing contents to file!");
+		}
+
+	}
+
+}
+
diff --git a/archive/j/java/README.md b/archive/j/java/README.md
@@ -13,7 +13,7 @@ Welcome to Sample Programs in Java!
 - [Hello World in Java](https://therenegadecoder.com/code/hello-world-in-java/)
 - [Reverse a String in Java](https://therenegadecoder.com/code/java/reverse-a-string-in-java/)
 - [Capitalize a String in Java](https://github.com/TheRenegadeCoder/sample-programs/issues/1366)
-
+- [File IO in Java](https://sample-programs.therenegadecoder.com/projects/file-io/)
 ## Fun Facts
 
 - Debut: 1995