Repeated number with frequency
This example with take a simple java array and print its element with repetition
count.
import java.util.Arrays;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
public class Test{
public static void main(String[] args) {
String[] city = {"Bombay", "Delhi", "sydney", "Delhi", "paris", "Bombay", "ny"};
List<String> asList = Arrays.asList(city);
Map<String, Integer> map= new HashMap<String, Integer>();
for(String s: city){
map.put(s,Collections.frequency(asList,s));
}
System.out.println(map);
}
}
Program output :
{Delhi=2, sydney=1, paris=1, Bombay=2, ny=1}
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