AllCapsDemo.java Source code

Introduction

Here is the source code for AllCapsDemo.java

Source

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileReader;
import java.io.FileWriter;

public class AllCapsDemo {
    public static void main(String[] arguments) {
        String sourceName = "asdf";
        try {
            File source = new File(sourceName);
            File temp = new File("cap" + sourceName + ".tmp");

            FileReader fr = new FileReader(source);
            BufferedReader in = new BufferedReader(fr);

            FileWriter fw = new FileWriter(temp);
            BufferedWriter out = new BufferedWriter(fw);

            boolean eof = false;
            int inChar = 0;
            do {
                inChar = in.read();
                if (inChar != -1) {
                    char outChar = Character.toUpperCase((char) inChar);
                    out.write(outChar);
                } else
                    eof = true;
            } while (!eof);
            in.close();
            out.close();

            boolean deleted = source.delete();
            if (deleted)
                temp.renameTo(source);
        } catch (Exception se) {
            System.out.println("Error - " + se.toString());
        }
    }
}