TreeMap in java
import java.util.Map;
import java.util.TreeMap;
public class TreeMapExample
{
public static void main(String[] args)
{
TreeMap<Integer, String> tm = new TreeMap<Integer, String>();
tm.put(1000, "Apple");
tm.put(1002, "Raspberry");
tm.put(1001, "Velvet apple");
tm.put(1003, "Banana");
for(Map.Entry obj : tm.entrySet())
{
System.out.println(obj.getKey() + " " + obj.getValue());
}
}
}treemap
>>> def treemap(lst):
... for i in range(len(lst)):
... if type(lst[i])==int:
... lst[i]=lst[i]**2
... elif type(lst[i])==list:
... treemap(lst[i])
... return lst
>>> lst = [1, 2, 3, [4, [5, 6], 7]]
>>> print(treemap(lst))
[1, 4, 9, [16, [25, 36], 49]]treemap java
TreeMap<Integer, String> x = new TreeMap<Integer, String>();
tm.put(1, "Hello");treemap
- TreeMap doesn't have null key and keys are sorted
Can contain only unique keys and keys are sorted in ascending order.treemap
def treemap(lst):
cp = list()
for element in lst:
if isinstance(element, list):
cp.append(treemap(element))
else:
cp.append(element**2)
return cptreemap in java
TreeSet: Can contain only unique values and it is sorted in ascending order
TreeMap: Can contain only unique keys and keys are sorted in ascending order.Copyright © 2021 Codeinu
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