package com.newvideo.util;
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import java.text.DecimalFormat;
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import java.util.regex.Pattern;
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import javax.persistence.Entity;
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@Entity
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public class NumberUtil {
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public static String get2PointNumber(float price) {
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DecimalFormat decimalFormat = new DecimalFormat(".00");// 构造方法的字符格式这里如果小数不足2位,会以0补足.
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String p = decimalFormat.format(price);// format 返回的是字符串
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return p;
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}
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public static String get1PointNumber(float price) {
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DecimalFormat decimalFormat = new DecimalFormat(".0");// 构造方法的字符格式这里如果小数不足2位,会以0补足.
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String p = decimalFormat.format(price);// format 返回的是字符串
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return p;
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}
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public static String get1PointNumber(double price) {
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DecimalFormat decimalFormat = new DecimalFormat(".0");// 构造方法的字符格式这里如果小数不足2位,会以0补足.
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String p = decimalFormat.format(price);// format 返回的是字符串
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return p;
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}
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public static String get1Point(float d) {
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DecimalFormat fnum = new DecimalFormat("##0.0");
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String dd = fnum.format(d);
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return dd;
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}
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public static String get1Point(String d) {
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try {
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return get1Point(Float.parseFloat(d));
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} catch (Exception e) {
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e.printStackTrace();
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}
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return "9.0";
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}
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private static String getNumberWithZero(int number) {
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if (number < 10)
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return "0" + number;
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else
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return number + "";
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}
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// 将秒转化为标准时间长度
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public static String convertSecondToString(int second) {
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if (second < 60) {// 小于1分钟
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return "00:" + getNumberWithZero(second);
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} else if (second < 60 * 60) {// 小于1小时
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int minite = second / 60;
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return getNumberWithZero(minite) + ":"
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+ getNumberWithZero(second % 60);
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} else {
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int hour = second / (60 * 60);
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int minite = (second % (60 * 60)) / 60;
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int se = (second % (60 * 60)) % 60;
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return getNumberWithZero(hour) + ":" + getNumberWithZero(minite)
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+ ":" + getNumberWithZero(se);
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}
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}
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public static boolean isNumeric(String str) {
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if (str == null || "".equals(str.trim())) {
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return false;
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}
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Pattern pattern = Pattern.compile("[0-9]*");
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return pattern.matcher(str).matches();
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}
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}
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