Barra de progresso em java com padrão builder

ProgressBar.java

package com.dont.trade.utils;

import org.apache.commons.lang3.StringUtils;

/**
 * author: don't
 **/

public class ProgressBar {

	private int current, max, bars;
	private String completed, notCompleted, symbol;

	public ProgressBar() {
		// default values
		current = 0;
		max = 10;
		bars = 5;
		completed = "§a";
		notCompleted = "§c";
		symbol = "|";
	}

	public ProgressBar current(int current) {
		this.current = current;
		return this;
	}

	public ProgressBar max(int max) {
		this.max = max;
		return this;
	}

	public ProgressBar bars(int bars) {
		this.bars = bars;
		return this;
	}

	public ProgressBar completed(String completed) {
		this.completed = completed;
		return this;
	}

	public ProgressBar notCompleted(String notCompleted) {
		this.notCompleted = notCompleted;
		return this;
	}

	public ProgressBar symbol(String symbol) {
		this.symbol = symbol;
		return this;
	}

	public String build() {
		float percent = (float) current / max;
		int progressBars = (int) (bars * percent);

		return StringUtils.repeat(completed + symbol, progressBars) + StringUtils.repeat(notCompleted + symbol, bars - progressBars);
	}

	@Override
	public String toString() {
		return build();
	}

}