一道编程题

[layspain21]

编写程序将一个INT数字转换成中文数字的金额，如：10000->一万元，13002->一万元三千零二元
要求：1 改数字不能大于65535
2尽量考虑性能问题。

[老张-AI]

作业帖？

[hotmalx]

public static String intToChnNumConverter(int num){
String resultNumber = null;
if(num > 100000 || num < 0){
return "";
}
HashMap chnNumbers = new HashMap();
chnNumbers.put(0, "零");
chnNumbers.put(1, "一");
chnNumbers.put(2, "二");
chnNumbers.put(3, "三");
chnNumbers.put(4, "四");
chnNumbers.put(5, "五");
chnNumbers.put(6, "六");
chnNumbers.put(7, "七");
chnNumbers.put(8, "八");
chnNumbers.put(9, "九");

HashMap unitMap = new HashMap();
unitMap.put(1, "");
unitMap.put(10, "十");
unitMap.put(100, "百");
unitMap.put(1000, "千");
unitMap.put(10000, "万");
int[] unitArray = {10000,1000, 100, 10, 1};

StringBuilder result = new StringBuilder();
int i = 0;
while(num > 0){
int n1 = num / unitArray[i];
if(n1 > 0){
result.append(chnNumbers.get(n1)).append(unitMap.get(unitArray[i]));
}
if(n1 == 0){
if(result.lastIndexOf("零") != result.length()-1){
result.append("零");
}
}
num = num % unitArray[i++];
if(num == 0){
break;
}
}
resultNumber = result.toString();
if(resultNumber.startsWith("零")){
resultNumber = resultNumber.substring(1);
}
if(resultNumber.startsWith("一十")){
resultNumber = resultNumber.substring(1);
}
return resultNumber+"元";
}

[huage]

 public static String getChinese(int i){
    	 String str ="" ;
    	 if(i<65535 && i> 0){
    		 String [] s = {"零","一","二","三","四","五","六","七","八","九"} ;
    		 String [] s2 ={"万","千","百","十",""} ;
    		 String st = i+"" ;
    		 
    		 for (int j =0 ; j <st.length() ; j++) {
			  int x = Integer.parseInt(st.substring(j, j+1)) ;
			  if(x>0){
				  System.out.println(x + "  " + j);
				  str = str + s[x]+s2[j] ;
			  }else{
				  str = str + s[x] ;
			  }
			}
    	 }
    	str = str+"元" ;
    	 return str ;
     }

去试试吧

[huage]

忘了删零 ，悲剧

  public static String getChinese(int i){
    	 String str ="" ;
    	 if(i<65535 && i> 0){
    		 String [] s = {"零","一","二","三","四","五","六","七","八","九"} ;
    		 String [] s2 ={"万","千","百","十",""} ;
    		 String st = i+"" ;
    		 
    		 for (int j =0 ; j <st.length() ; j++) {
			  int x = Integer.parseInt(st.substring(j, j+1)) ;
			  if(x>0){
				  System.out.println(x + "  " + j);
				  str = str + s[x]+s2[j] ;
			  }else{
				  str = str + s[x] ;
			  }
			}
    	 }
    	 for (int j = str.length(); j >0  ; j--) {
			if(str.substring(j-1, j).equals("零")){
				str = str.substring(0, j-1) ;
			}else{
				return str+"元" ;
			}
			
		}
    	
    	 return str ;
     }

[huage]

在发一次唉，有点晕

 public static String getChinese(int i){
    	 String str ="" ;
    	 if(i<65535 && i> 0){
    		 String [] s = {"零","一","二","三","四","五","六","七","八","九"} ;
    		 String [] s2 ={"万","千","百","十",""} ;
    		 String st = i+"" ;
    		 
    		 for (int j =0 ; j <st.length() ; j++) {
			  int x = Integer.parseInt(st.substring(j, j+1)) ;
			  if(x>0){
				  str = str + s[x]+s2[j] ;
			  }else{
				  str = str + s[x] ;
			  }
			}
    	 }
    	 str =	str.replace("零零零", "零") ;
    	 str =	str.replace("零零", "零") ;
    	 for (int j = str.length(); j >0  ; j--) {
			if(str.substring(j-1, j).equals("零")){
				str = str.substring(0, j-1) ;
			}else{
				return str+"元" ;
			}
			
		}
    	
    	 return str ;
     }

[coooliang]

记得面试题有这样的。