package Blatt18;

import java.io.*;

public class ToUpperCaseWriter extends Writer{

	Writer os;

	public ToUpperCaseWriter(Writer os){
		this.os = os;
	}
	public void write(char c) throws IOException {
		os.write(Character.toUpperCase(c));
	}
	public void write(char[] cbuf, int off, int len) throws IOException {
		for(int i = off; i < off + len; i++)
			write(cbuf[i]);
	}
	public void write(String str, int off, int len) throws IOException
	{
		for (int i = off; i < off + len; i++)
			write(str.charAt(i));
	}

	//alle (relevanten) Methoden von Writer überschreiben
	public void flush() throws IOException
	{
		os.flush();
	}
	public void close() throws IOException
	{
		os.close();
	}
}