Java tutorial
import java.io.File; import java.io.FileReader; public class Main { public static void main(String[] args) throws Exception { File f = new File("Main.java"); FileReader fr = new FileReader(f); char[] c = new char[(int) f.length()]; char[] cnew = new char[(int) f.length()]; StringBuffer sbuf = new StringBuffer(); fr.read(c, 0, (int) f.length()); int len = (int) f.length(); for (int i = 0, j = len - 1; i < len; i++, j--) { cnew[i] = c[j]; sbuf.append(cnew[i]); } System.out.println(sbuf.toString()); fr.close(); } }