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LIST - PUSH_FRONT() METHOD


push_front() Method is used to insert a new Item at the beginning of the List.


Let us say, we have a List that contains three names, Mohan, Kriti and Salim. And we want to insert a new name Mika at the beginning of the List.


We can use the push_front() Method to achieve the above.


Example :



#include <iostream>
#include <list>

using namespace std;

int main() {

    list<string> x = {"Mohan", "Kriti", "Salim"};
    x.push_front("Mika");
    for (string data : x)  
    {  
        cout << data << endl;  
    }
    
    return 0;    
}


Output :



  Mika
  Mohan
  Kriti
  Salim

So, in the above code we have created a List and initialised to the variable x.


list<string> x = {"Mohan", "Kriti", "Salim"};

Below is how the values are positioned in the List,

java_Collections

Next, we have used the push_front() method to add the new name Mika at the end of the List.


x.push_front("Mika");
java_Collections


And we get the below output,


Mohan
Kriti
Salim
Mika