Java实现的字符型进度条，java字符进度条,package com.

Java实现的字符型进度条，java字符进度条,package com.

package com.gondi.util;/** * 显示进度条(参数：当前点、结束点、进度条长度) * example: *      System.out.println(ProgressBar.showBarByPoint(30, 100, 20)); * result: *      [----->              ] 30.00% * @author gondi * */public class ProgressBar {    /**     * 显示进度条     * @param currentPoint 当前点     * @param finishPoint 结束点     * @param barLength 进度条长度(字符)     * @return 进度条结果     */    public static String showBarByPoint(double currentPoint, double finishPoint, int barLength) {        // 根据进度参数计算进度比率        double rate = currentPoint / finishPoint;        // 根据进度条长度计算当前记号        int barSign = (int) (rate * barLength);        // 生成进度条        return makeBarBySignAndLength(barSign, barLength) + String.format(" %.2f%%", rate * 100);    }    /**     * 构造进度条     * @param barSign 进度条标记(当前点)     * @param barLength 进度条长度     * @return 字符型进度条     */    private static String makeBarBySignAndLength(int barSign, int barLength) {        StringBuilder bar = new StringBuilder();        bar.append("[");        for (int i=1; i<=barLength; i++) {            if (i < barSign) {                bar.append("-");            } else if (i == barSign) {                bar.append(">");            } else {                bar.append(" ");            }        }        bar.append("]");        return bar.toString();    }}