java实现整数转化为中文大写金额的方法

在日常生活中，我们经常会将阿拉伯数字转化为中文大写的情况：\”零\”, \”壹\”, \”贰\”, \”叁\”, \”肆\”, \”伍\”, \”陆\”, \”柒\”, \”捌\”, \”玖\”, \”拾\”, \”佰\”, \”仟\”, \”万\”, \”亿\”，因此自己就编写一个类，实现该功能的转化。
实现过程：
对于这个问题的实现，我们首先把数字按四位一个拆开（符合我们读数字的习惯），然后对这四位数，做出他的读法，具体代码如下：

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]);
}
}
//个
if (g > 0) {
sb.append(NUMBER1[g]);
}
return sb.toString();
}

下面我们只需要在编写一个方法，实现每个四位数的读法以及对应的单位即可，具体代码如下：

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();
//亿
if (y > 0) {
sb.append(getNumberStr1000(y));
sb.append(NUMBER2[5]);
}
//万
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]);
}
}
//万以下
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();
}

完整源代码：

/**
*@Description:
*/
package com.lulei.util;

public class NumberUtil {
private static String[] NUMBER1 = {\”零\”, \”壹\”, \”贰\”, \”叁\”, \”肆\”, \”伍\”, \”陆\”, \”柒\”, \”捌\”, \”玖\”};
private static String[] NUMBER2 = {\”零\”, \”拾\”, \”佰\”, \”仟\”, \”万\”, \”亿\”};

/**
* @param num
* @return
* @Author:lulei
* @Description:将数字转化为大写
*/
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();
//亿
if (y > 0) {
sb.append(getNumberStr1000(y));
sb.append(NUMBER2[5]);
}
//万
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]);
}
}
//万以下
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:对万以下的数字进行大小写转化
*/
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]);
}
}
//个
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));
}

}

测试运行结果：

希望本文所述对大家学习java程序设计有所帮助。

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