How to find the maximum occurring character in a String using Maps in java | strings programs | ABC

[@ABCforTechnologyTraining]

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[@fanalu8788]

I am just a beginner, just following your series help me understand a lot more than just reading the answers. Thanks a lot.

[@ashishsuman7079]

what if 2 characters occurs highest number of times in the string ?

[@rajatbatra2256]

Thanks for such a awesome series sir.. it's really helpful...you are doing a great job by keeping education and.technology side by side..this is one.of.the best tutorial on KZbin.

[@ABCforTechnologyTraining]

Thanks for acknowledging our efforts, Rajat! Edutainment is the new form of education to both educate as well as amuse. Keep watching, Keep learning!

[@sibisidharth4933]

for iteration we have to use entry set function for(Map.Entry data:lhmap.entrySet())

[@ankitpandit5998]

Good way to teach

[@MdAzad-hb7vc]

Fabulous way of teaching!! But this code leaves an edge-case.. as in, it would not be able to print multiple max occurring characters.

[@MdAzad-hb7vc]

Settmap = wMap.entrySet(); int counter =0; for ( Map.Entry data :tmap){ if (data.getValue() > counter ) { counter = data.getValue(); } } // iterates through the map again, to find key/keys with the counterValue. for (Map.Entry data2 : tmap){ if (data2.getValue() == counter) System.out.print(data2.getKey() ); }

[@MdAzad-hb7vc]

Well, there is a much easier approach than what i just wrote above! Settmap = wMap.entrySet(); int counter =0; char val = ' '; for ( Map.Entry data :tmap){ if (data.getValue() >= counter ) { counter = data.getValue(); val = data.getKey(); System.out.print(val); } }

[@ankitshrivastava1772]

Excellent.

[@ABCforTechnologyTraining]

Thanks for listening. Happy learning!

[@shashikiranb4230]

U ARE AWESOME ...

[@business187]

CAN U plzzz MAKE TUTORIALS ALGORITHM?? Plzzzzzzzzzzz

[@rajatbatra2256]

What if 2 characters are repeating maximum.no.of.time???

[@nimasherpa6093]

What would have if more than single character have it's maximum value The same instructor of code is not giving the desire output

[@srinivaskatam998]

Same doubt for me bro .....if any knows, please explain....

[@jhansiranikavali2709]

sir what if we have more than most repeating characters? also how to find the least repeating characters if the string contains more then one characters????

[@prachigarg1400]

Sir, how can we find the second highest occurring character in a string ??

[@jamesbonding3988]

get the top 1 .. then remove the top 1 or filter .. run again your algo .. then you got the 2nd one :) or you do a sort by value place a rank

[@abdullahbaabbad885]

This is another logic Since we put the variables in the map by making use of newval variable it means newval variable contains the maximum value in which the character has been occuring. Hence we will just compare it with other values and print it the code is: public class test { public static void main(String[] args) { Scanner sc = new Scanner(System.in); System.out.println("Enter your String"); String s = sc.nextLine(); s = s.toLowerCase(); char c[] = s.toCharArray(); int newval = 0; Map map = new HashMap(); for (int i = 0; i < s.length(); i++) { if (map.containsKey(c[i]) == false) { map.put(c[i], 1); } else { int oldval = map.get(c[i]); newval = oldval + 1; map.put(c[i], newval); } } Set hmap = map.entrySet(); for (Map.Entry data : hmap) { if (data.getValue() == newval) { System.out.print(data.getKey()); System.out.println(data.getValue()); } } } }

[@DhanaLakshmi-lw7xo]

no its not working check with thiss input aaaahhhhhhhhhjjjj

[@maksaini7515]

char maxkey =' '; giving error how to resolve it.

[@ABCforTechnologyTraining]

Please share your complete program code here. We'll fix the errors for you.

[@DhanaLakshmi-lw7xo]

give space between quotes

[@nikunjgupta2878]

Sir ye program run hi nahi ho Raha h 😥😥

[@vybhavavenkatesh7703]

Add an iterator before the foreach loop.