hashmap

问题 I have a hash containing node data. I am expecting hash content to be printed in -r_<count> and -d_<count> attributes. Here is the script: use strict; use warnings; use Data::Dumper; my %hash = ( 'Network=Test,Cell=31' => [ 'Network=Test,Unit=RU-1-1,Port=A', 'Network=Test,Unit=RU-1-2,Port=A' ], 'Network=Test,Cell=32' => [ 'Network=Test,Unit=RU-1-1,Port=A', 'Network=Test,Unit=RU-1-2,Port=A' ], 'Network=Test,Cell=33' => [ 'Network=Test,Unit=RU-1-5,Port=A', 'Network=Test,Unit=RU-1-6,Port=A' ], )

问题 I have a hash containing node data. I am expecting hash content to be printed in -r_<count> and -d_<count> attributes. Here is the script: use strict; use warnings; use Data::Dumper; my %hash = ( 'Network=Test,Cell=31' => [ 'Network=Test,Unit=RU-1-1,Port=A', 'Network=Test,Unit=RU-1-2,Port=A' ], 'Network=Test,Cell=32' => [ 'Network=Test,Unit=RU-1-1,Port=A', 'Network=Test,Unit=RU-1-2,Port=A' ], 'Network=Test,Cell=33' => [ 'Network=Test,Unit=RU-1-5,Port=A', 'Network=Test,Unit=RU-1-6,Port=A' ], )

问题 I have a hash containing node data. I am expecting hash content to be printed in -r_<count> and -d_<count> attributes. Here is the script: use strict; use warnings; use Data::Dumper; my %hash = ( 'Network=Test,Cell=31' => [ 'Network=Test,Unit=RU-1-1,Port=A', 'Network=Test,Unit=RU-1-2,Port=A' ], 'Network=Test,Cell=32' => [ 'Network=Test,Unit=RU-1-1,Port=A', 'Network=Test,Unit=RU-1-2,Port=A' ], 'Network=Test,Cell=33' => [ 'Network=Test,Unit=RU-1-5,Port=A', 'Network=Test,Unit=RU-1-6,Port=A' ], )

问题 I have this json that I convert to: var leerCHAT []interface{} but I am going through crazy hoops to get to any point on that map inside map and inside map crazyness, specially because some results are different content. this is the Json [ null, null, "hub:zWXroom", "presence_diff", { "joins":{ "f718a187-6e96-4d62-9c2d-67aedea00000":{ "metas":[ { "context":{}, "permissions":{}, "phx_ref":"zNDwmfsome=", "phx_ref_prev":"zDMbRTmsome=", "presence":"lobby", "profile":{}, "roles":{} } ] } },

问题 I have this json that I convert to: var leerCHAT []interface{} but I am going through crazy hoops to get to any point on that map inside map and inside map crazyness, specially because some results are different content. this is the Json [ null, null, "hub:zWXroom", "presence_diff", { "joins":{ "f718a187-6e96-4d62-9c2d-67aedea00000":{ "metas":[ { "context":{}, "permissions":{}, "phx_ref":"zNDwmfsome=", "phx_ref_prev":"zDMbRTmsome=", "presence":"lobby", "profile":{}, "roles":{} } ] } },

问题 I'm trying to convert a list of players into map. player contains name & runs as variables. List<Player> runnerList = Arrays.asList(new Player("Virat", 4654), new Player("Jaddu", 5798), new Player("Dhoni", 4581), new Player("Virat", 8709), new Player("Dhoni", 4711), new Player("Virat", 4541)); my problem is i'm trying to convert to map by combining the runs using streams and not getting through. Tried for each and merged the values, like below, and getting expected result. playerList.forEach

问题 I have two maps of arrays. Map<String, List<String>> map1 = new HashMap<>(); Map<String, List<String>> map2 = new HashMap<>(); I want to merge them in one new map. If a key exists in both maps, in that case, I should merge arrays. For example: map1.put("k1", Arrays.asList("a0", "a1")); map1.put("k2", Arrays.asList("b0", "b1")); map2.put("k2", Arrays.asList("z1", "z2")); // Expected output is Map 3: {k1=[a0, a1], k2=[b0, b1, z1, z2]} I tried to do that with streams Map<String, List<String>>

问题 I need to keep the order of my list of objects as it can be changed and reordered anytime in my webapp. In my model I have a array list of objects example objectList = [object1, object2, object3, object4] and I save the order of each object belonging to this instance to a Map example: order { "object1":4, "object2":2, "object3":1, "object4":3 } Therefore i want to sort my array according to its value in the map retrieved by the objects Id as the key: Expected result: [object3, object2,

问题 I have an expandable list View that has a check button, but the problem is I can only add one child item. dataItem.setSubCategory(arSubCategory); arCategory.add(dataItem); dataItem = new DataItem(); dataItem.setCategoryName("Art"); arSubCategory = new ArrayList<>(); for(int j = 1; j < 6; j++) { SubCategoryItem subCategoryItem = newSubCategoryItem(); subCategoryItem.setIsChecked(ConstantManager.CHECK_BOX_CHECKED_FALSE); subCategoryItem.setSubCategoryName("Art: "+j); arSubCategory.add

问题 I have an expandable list View that has a check button, but the problem is I can only add one child item. dataItem.setSubCategory(arSubCategory); arCategory.add(dataItem); dataItem = new DataItem(); dataItem.setCategoryName("Art"); arSubCategory = new ArrayList<>(); for(int j = 1; j < 6; j++) { SubCategoryItem subCategoryItem = newSubCategoryItem(); subCategoryItem.setIsChecked(ConstantManager.CHECK_BOX_CHECKED_FALSE); subCategoryItem.setSubCategoryName("Art: "+j); arSubCategory.add