Accessing the Data in MAP Data Structure | Applications of Maps in Java | Java Beginners Tutorial

[@ABCforTechnologyTraining]

Learn from Leaders, Learn from ABC. Watch our latest technical videos in your language: For Hindi:- bit.ly/2TRuGVP For Kannada:- bit.ly/31NH63M For Telugu:- bit.ly/2MuYRRP For Tamil:- bit.ly/2Num5Hz

[@rishavkumar7965]

Now, this is the real definition of Marvellous. Totally Excellent.

[@abhijeetgupta2754]

Very awesome lectures. But sir there is one suggestion, please provide time complexity analysis also after each program.

[@anushka3287]

nice explanation, and animation

[@Ankit-mq6em]

Kya English hai gajabb

[@saurabhsingh7032]

Set

[@ashrafulalan6440]

use import java.util.HashMap; above the program

[@akhileshn7923]

entrySet will give you both keys and values keySet will give you only keys values will give you only values m.entrySet will access keys and value and its of type Set and hmap is reference you can also write above line like this Set hmap = m.entrySet()

[@ADITYAworld-sc3sv]

I recommend you to make lecture video in hindi also

[@anjalichopra1540]

Sir in your previous vedio ..to get the value, map.get[y(i)] was used ..but in this you are using , data.getvalue() ...why?

[@akhileshn7923]

here data is variable ..using variable name we can use getValue() method to access value in advance for loop

[@ashwinilohar1169]

for( Map.Entry data: hmap) Can only iterate over an array or an instance of java.lang.Iterable : compile time error is showing. How to remove it

[@ashrafulalan6440]

use import java.util.HashMap; above the program

[@shivamsinha5554]

After data:hmap.enterySet()

[@vajjaramanjaneyulu7334]

Supet

[@akhileshn7923]

//we can also use iterator import java.util.HashMap; import java.util.Iterator; import java.util.Map; import java.util.Map.Entry; import java.util.Set; public class String1 { public static void main(String[] args) { String x = "ARADHYA"; char y[] = x.toCharArray(); int size = y.length; HashMap hm = new HashMap(); int i=0; while(i!=size) { if(hm.containsKey(y[i])==false) { hm.put(y[i],1); } else { int oldval = hm.get(y[i]); int newval = oldval+1; hm.put(y[i],newval); } ++i; } Set set = hm.entrySet(); Iterator itr = set.iterator(); while(itr.hasNext()) { Map.Entry me = (Entry) itr.next(); System.out.println("key is "+me.getKey()+".."+"value is"+me.getValue()); } } }