Leitura de Arquivo

package abrirarquivo;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;

public class Main {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) throws FileNotFoundException, IOException {
        // TODO code application logic here
        String arquivo = "C:/rob.txt";
        File file = new File(arquivo);
        if (! file.exists()) {
            System.out.println("ERROR");
        }       
        BufferedReader br = new BufferedReader(new FileReader(arquivo));
        StringBuffer bufSaida = new StringBuffer();
        String linha;
        
        while( (linha = br.readLine()) != null ){
            if(!linha.trim().equals(FileType.CUSTOMER.getDescription()))
                bufSaida.append(linha).append("\n");    
        }
        br.close();
        System.out.println(bufSaida);       
    }        
}

package abrirarquivo;

public enum FileType {

	CUSTOMER(1,"#PER_CUSTOMER"),
	RATE_PLAN(2,"#PER_RATE_PLAN"),
	COST_CENTER(3,"#PER_COST_CENTER"),
	CUSTOMER_TYPE(4,"#PER_CUSTOMER_TYPE")
	;


	private Integer id;
	private String description;

	
	private FileType(Integer id, String description) {
		this.id = id;
		this.description = description;
	}	
	private Integer toInteger(){
		return this.id;
	}
        
	public static FileType valueOf(Integer id){
		FileType status = null;

		if (id!=null){
			for (FileType obj : FileType.values()) {
				if (obj.toInteger().equals(id)) {

					status = obj;
					break;
				}
			}
		}
		return status;
	}
	
	public Integer getId() {
		return id;
	}	
	public void setId(Integer id) {
		this.id = id;
	}	
	public String getDescription() {
		return description;
	}	
	public void setDescription(String description) {
		this.description = description;
	}
}