public String compilar(String codigo, String caminhoAplicacao , String nomeArquivo) throws EErroAoCompilar{

        try {
            salvaCodigo(codigo,caminhoAplicacao + "\\src\\arquivos\\" + nomeArquivo + ".java" );

            FileOutputStream errorStream = new FileOutputStream(caminhoAplicacao+"\\erros.txt");
            FileOutputStream out = new FileOutputStream(caminhoAplicacao+"\\out.txt");
            FileInputStream in = new FileInputStream(caminhoAplicacao+"\\in.txt");

            JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
            compiler.run(in,out, errorStream, caminhoAplicacao + "\\src\\arquivos\\" + nomeArquivo + ".java");
            moveArquivoCompilado(caminhoAplicacao,nomeArquivo+".class");

            return leArquivoErros(caminhoAplicacao + "\\erros.txt");

        } catch (FileNotFoundException e) {
            throw new EErroAoCompilar("FileNotFoundException");
        } catch (IOException e) {
            throw new EErroAoCompilar("IOException");
        } catch (Exception e){
            JOptionPane.showMessageDialog(null,"NullPointerException");
            throw new EErroAoCompilar("NullPointerException");
        }
    }