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#2
DriveK2016-04-27 22:43
//写的比较粗糙，也不想改了。。。，随便看下吧
public static void main(String[] args) { Map<String,ArrayList<String>> map=allocation(4,12); for(Map.Entry<String, ArrayList<String>> entry:map.entrySet()){ String s1=entry.getKey(); ArrayList<String> list=entry.getValue(); String s2=""; for (String s3: list) { s2=s2+","+s3; } System.out.println(s1+"............"+s2.substring(1)); } } /** * * @param GroupNum 分配的组数 * @param dataLen 分配的数据大小 * @return */ public static Map<String,ArrayList<String>> allocation(int GroupNum,int dataLen){ if(dataLen%GroupNum!=0){ throw new RuntimeException("你输入的数据有问题"); } String[] sArr=new String[GroupNum]; for(int x=0;x<sArr.length;x++){ sArr[x]=String.valueOf((char)(97+x)); } ArrayList<ArrayList<String>> list=new ArrayList<ArrayList<String>>(); Map<String,ArrayList<String>> map=new HashMap<String, ArrayList<String>>(); ArrayList<String> list1=new ArrayList<String>(); for(int y=0;y<dataLen;y++){ if((y%(dataLen/GroupNum)==0)&&y+1!=dataLen){ list1.add(String.valueOf(y+1)); }else{ list1.add(String.valueOf(y+1)); } if((y+1)%(dataLen/GroupNum)==0){ list.add((ArrayList<String>) list1.clone()); list1.clear(); } } for(int i=0;i<sArr.length;i++){ map.put(sArr[i], list.get(i)); } return map; } |
想实现一个功能，将1~12个数字分成四组，分别放入a，b,c,d中必须用Map<String,ArrayList<String>>这个结构，我想问一下该怎么写呢？如果要是分成六组呢，更多呢？
public static void main(String[] args)
{
String[] array={"a","b","c","d"};
int[] num = new int[12];
Map<String,ArrayList<String>> map = new HashMap();
for(int i=0;i<num.length;i++)
{
num[i]=i+1;
//System.out.print(num[i]+" ");
}
for(int i=0;i<array.length;i++)
{
ArrayList list = new ArrayList();
for(int j=0;j<num.length;j++)
{
if(num[j]<4)
{
list.add(String.valueOf(num[j]));
continue;
}
else if(num[j]>=4&&num[j]<8)
{
list.add(String.valueOf(num[j]));
continue;
}
else if(num[j]>=8&&num[j]<10)
{
list.add(String.valueOf(num[j]));
continue;
}
else
{
list.add(String.valueOf(num[j]));
continue;
}
}
map.put(array[i], list);
}
for(String key:map.keySet())
{
System.out.println(key+" "+map.get(key));
}
}