我是
Java的新手我如何在HashMap中存储整数值数组,之后我将这个HashMap写入txt文件,但这并不重要.我可以存储单个字段,但不能存储数组.有任何想法吗 ？
- public void salveazaObiectulCreat(String caleSpreFisier) {
- HashMap map = new HashMap();
- map.put ("Autorul",numelePrenumeleAutorului);
- map.put ("Denumirea cartii",denumireaCartii);
- map.put ("Culoarea cartii",culoareaCartii);
- map.put ("Genul cartii",gen);
- map.put ("Limba",limba);
- map.put ("Numarul de copii",numarulDeCopii);
- map.put ("Numarul de pagini",numarulDePagini);
- map.put ("Pretul cartii",pretulCartii);
- try {
- File file = new File(caleSpreFisier);
- FileOutputStream f = new FileOutputStream(file);
- ObjectOutputStream s = new ObjectOutputStream(f);
- s.writeObject(map);
- s.close();
- } catch(Exception e){
- System.out.println("An exception has occured");
- }
- }
解决方法
- HashMap<String,List<Integer>> map = new HashMap<String,List<Integer>>();
- HashMap<String,int[]> map = new HashMap<String,int[]>();
选择一个,例如
- HashMap<String,List<Integer>>();
- map.put("Something",new ArrayList<Integer>());
- for (int i=0;i<numarulDeCopii; i++) {
- map.get("Something").add(coeficientUzura[i]);
- }
要不就
- HashMap<String,int[]>();
- map.put("Something",coeficientUzura);
