我见过同时实现Comparable和Comparator的类.这是什么意思？为什么我会使用一个而不是另一个？
我有一个JSON数组,我想对它进行排序,具体取决于名称和字母顺序.我的Json如下.
[
{
"UserID": 77,
"InvID": 333,
"Email": "sumeetssm@gmail.com",
"Phone": "",
"Name": "Summet",
"Company": "",
"Date": "2014-01-14T00:00:00"
},
{
"UserID": 0,
"InvID": 334,
"Email": "amit@testt.com",
"Phone": "",
"Name": "Amit",
"Company": "",
"Date": "2014-01-14T00:00:00"
},
{
"UserID": 3,
"InvID": 335,
"Email": "amitesh@yahoo.com",
"Phone": "",
"Name": "Amitesh",
"Company": "",
"Date": "2014-01-14T00:00:00"
},
{
"UserID": 0,
"InvID": 336,
"Email": "foobar@test.com",
"Phone": "",
"Name": "FOO",
"Company": "",
"Date": "2014-01-14T00:00:00"
},
{
"UserID": 0,
"InvID": 337,
"Email": "krazy.lance@gmail.com",
"Phone": "",
"Name": "Krazy",
"Company": "",
"Date": …在我的应用程序中，我想将服务器中的一些数据添加到RecyclerView.
\n我写了下面的代码，我可以从服务器获取数据并显示到RecyclerView.
\n但我的 json 未按服务器的字母排序。\n我想在将此数据添加到 中之前，首先用字母表对其进行排序，然后添加到 中。\n我的 json ：ArrayListArrayList
{\n "validationCheckResult": {\n "isValid": true,\n "message": "Success"\n },\n "internalCarBoard": [{\n "id": 0,\n "name": \xe2\x80\x9cS500\xe2\x80\x9d,\n "companyName": \xe2\x80\x9cBenz\xe2\x80\x9d,\n }, {\n "id": 0,\n "name": "\xc2\xa0E250\xe2\x80\x9d,\n "companyName": \xe2\x80\x9cBenz\xe2\x80\x9d,\n }, {\n "id": 0,\n "name": \xe2\x80\x9cTT\xe2\x80\x9d,\n "companyName": \xe2\x80\x9cAudi\xe2\x80\x9d,\n }, {\n "id": 0,\n "name": "\xc2\xa0Talisman\xe2\x80\x9d,\n "companyName": \xe2\x80\x9cRenult\xe2\x80\x9d,\n }, {\n "id": 0,\n "name": "\xc2\xa0Accord\xe2\x80\x9d,\n "companyName": \xe2\x80\x9cHonda\xe2\x80\x9d,\n }, {\n "id": 0,\n "name": \xe2\x80\x9cA8\xe2\x80\x9d,\n "companyName": …我有一个对象类Product,如下所示
public class Product {
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
String name;
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public String getImage() {
return image;
}
public void setImage(String image) {
this.image = image;
}
public int getPrice() {
return price;
}
public void setPrice(int price) {
this.price = price;
}
int price;
String id;
String image;
}
我想根据价格对产品进行分类.我的阵列是
List<Product> …