Question 78

package com.udayankhattry.ocp;
 
import java.io.*;
 
public class Test {
    public static void main(String[] args) throws IOException {
        var file = new File("F:\\temp.dat");
        try(
            var os = new DataOutputStream(new FileOutputStream(file));
            var is = new DataInputStream((new FileInputStream(file)))
        ) {
            os.writeChars("JAVA");
            System.out.println(is.readChar());
        }
    }
}