在日常生活中，我們經常會將阿拉伯數字轉化為中文大寫的情況："零", "壹", "貳", "叁", "肆", "伍", "陸", "柒", "捌", "玖", "拾", "佰", "仟", "萬", "億"，因此自己就編寫一個類，實現該功能的轉化。
實現過程：
對于這個問題的實現，我們首先把數字按四位一個拆開（符合我們讀數字的習慣），然后對這四位數，做出他的讀法，具體代碼如下：
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private static String getNumberStr1000 (int num) { if (num > 9999 || num < 0) { return ""; } int q = num / 1000; int b = (num / 100) % 10; int s = (num / 10) % 10; int g = num % 10; StringBuffer sb = new StringBuffer(); //千 if (q > 0) { sb.append(NUMBER1[q]); sb.append(NUMBER2[3]); } //百 if (b > 0) { sb.append(NUMBER1[b]); sb.append(NUMBER2[2]); } else { if (q != 0) { sb.append(NUMBER2[0]); } } //十 if (s > 0) { sb.append(NUMBER1[s]); sb.append(NUMBER2[1]); } else { if (b != 0) { sb.append(NUMBER2[0]); } } //個 if (g > 0) { sb.append(NUMBER1[g]); } return sb.toString(); } |
下面我們只需要在編寫一個方法，實現每個四位數的讀法以及對應的單位即可，具體代碼如下：
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public static String getNumberStr(int num) { if (num < 0) { return ""; } if (num == 0) { return NUMBER1[0]; } int split = 10000; int y = num / (split * split); int w = (num / split) % split; int g = num % split; StringBuffer sb = new StringBuffer(); //億 if (y > 0) { sb.append(getNumberStr1000(y)); sb.append(NUMBER2[5]); } //萬 if (w > 999) { sb.append(getNumberStr1000(w)); sb.append(NUMBER2[4]); } else { if (w > 0) { if (y != 0) { sb.append(NUMBER2[0]); } sb.append(getNumberStr1000(w)); sb.append(NUMBER2[4]); } } //萬以下 if (g > 0) { if (w != 0) { if (g > 999) { sb.append(getNumberStr1000(g)); } else { sb.append(NUMBER2[0]); sb.append(getNumberStr1000(g)); } } else { if (y != 0) { sb.append(NUMBER2[0]); } sb.append(getNumberStr1000(g)); } } return sb.toString(); } |
完整源代碼：
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/** *@Description: */package com.lulei.util; public class NumberUtil { private static String[] NUMBER1 = {"零", "壹", "貳", "叁", "肆", "伍", "陸", "柒", "捌", "玖"}; private static String[] NUMBER2 = {"零", "拾", "佰", "仟", "萬", "億"}; /** * @param num * @return * @Author:lulei * @Description:將數字轉化為大寫 */ public static String getNumberStr(int num) { if (num < 0) { return ""; } if (num == 0) { return NUMBER1[0]; } int split = 10000; int y = num / (split * split); int w = (num / split) % split; int g = num % split; StringBuffer sb = new StringBuffer(); //億 if (y > 0) { sb.append(getNumberStr1000(y)); sb.append(NUMBER2[5]); } //萬 if (w > 999) { sb.append(getNumberStr1000(w)); sb.append(NUMBER2[4]); } else { if (w > 0) { if (y != 0) { sb.append(NUMBER2[0]); } sb.append(getNumberStr1000(w)); sb.append(NUMBER2[4]); } } //萬以下 if (g > 0) { if (w != 0) { if (g > 999) { sb.append(getNumberStr1000(g)); } else { sb.append(NUMBER2[0]); sb.append(getNumberStr1000(g)); } } else { if (y != 0) { sb.append(NUMBER2[0]); } sb.append(getNumberStr1000(g)); } } return sb.toString(); } /** * @param num * @return * @Description:對萬以下的數字進行大小寫轉化 */ private static String getNumberStr1000 (int num) { if (num > 9999 || num < 0) { return ""; } int q = num / 1000; int b = (num / 100) % 10; int s = (num / 10) % 10; int g = num % 10; StringBuffer sb = new StringBuffer(); //千 if (q > 0) { sb.append(NUMBER1[q]); sb.append(NUMBER2[3]); } //百 if (b > 0) { sb.append(NUMBER1[b]); sb.append(NUMBER2[2]); } else { if (q != 0) { sb.append(NUMBER2[0]); } } //十 if (s > 0) { sb.append(NUMBER1[s]); sb.append(NUMBER2[1]); } else { if (b != 0) { sb.append(NUMBER2[0]); } } //個 if (g > 0) { sb.append(NUMBER1[g]); } return sb.toString(); } public static void main(String[] args) { // TODO Auto-generated method stub int i = 1; System.out.println(i + "--" + NumberUtil.getNumberStr(i)); i = 1001; System.out.println(i + "--" + NumberUtil.getNumberStr(i)); i = 100101; System.out.println(i + "--" + NumberUtil.getNumberStr(i)); i = 10100101; System.out.println(i + "--" + NumberUtil.getNumberStr(i)); i = 1234567890; System.out.println(i + "--" + NumberUtil.getNumberStr(i)); } } |
測試運行結果：
希望本文所述對大家學習java程序設計有所幫助。
