tag:blogger.com,1999:blog-8712770457197348465.post5027454860594563154..comments2024-03-28T18:10:34.431-07:00Comments on Javarevisited: How to get Key From Value in Hashtable, HashMap in Java? Examplejavin paulhttp://www.blogger.com/profile/15028902221295732276noreply@blogger.comBlogger5125tag:blogger.com,1999:blog-8712770457197348465.post-74418731601945463492017-01-15T18:32:02.496-08:002017-01-15T18:32:02.496-08:00How we can get value through using key in hashmap ...How we can get value through using key in hashmap or hashtable? Devendera Singh Tadiyalhttps://www.blogger.com/profile/09197568283676126623noreply@blogger.comtag:blogger.com,1999:blog-8712770457197348465.post-9065194940122093422015-12-28T05:33:15.120-08:002015-12-28T05:33:15.120-08:00Hi everyone.
I used a map in jsp like
#@java.util....Hi everyone.<br />I used a map in jsp like<br />#@java.util.LinkedHashMap@{'1':'Jan','2':'Feb','3':'Mar','4':'Apr','5':'May','6':'June','7':'July','8':'Aug','9':'Sept','10':'Oct','11':'Nov','12':'Dec'}<br />Anonymoushttps://www.blogger.com/profile/12939990863599251480noreply@blogger.comtag:blogger.com,1999:blog-8712770457197348465.post-84959365331535838332013-11-18T08:17:37.954-08:002013-11-18T08:17:37.954-08:00int arr[] = { 2, 4, 5, 8, 5, 6, 5, 9, 3, 3, 3 };
... int arr[] = { 2, 4, 5, 8, 5, 6, 5, 9, 3, 3, 3 };<br /> Map map = new HashMap();<br /> for (int i : arr) {<br /> Integer count = map.get(i);<br /> map.put(i, count != null ? count + 1 : 0);<br /> }<br /> for (Map.Entry data : map.entrySet()) {<br /> System.out.println("data : " + data.getKey() + " ,occurance :"<br /> + data.getValue());<br /> }satishhttps://www.blogger.com/profile/08270163788599347089noreply@blogger.comtag:blogger.com,1999:blog-8712770457197348465.post-5706557840001039752013-11-10T14:47:27.660-08:002013-11-10T14:47:27.660-08:00When I tried to use "Map.Entry entry: table.e...When I tried to use "Map.Entry entry: table.entrySet()", it prompted that "Type mismatch: cannot convert from element type Object to Map.Entry". Even if I copied the codes, it has no change. I don't know where has wrong?Jodyhttps://www.blogger.com/profile/04280159003142653668noreply@blogger.comtag:blogger.com,1999:blog-8712770457197348465.post-86674572828095135042013-03-24T04:06:15.581-07:002013-03-24T04:06:15.581-07:00iterate throgh the map using MAP.Entry obtained fo...iterate throgh the map using MAP.Entry obtained for Map.entrySet() and find out the corresponding key for the value.Anonymousnoreply@blogger.com