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：
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：
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：
/**
*@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。
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