Java code problem.

Suppose that there are two nodes in the main class. How could I pass them into another class called mix.

Also in the mix class, I want two nodes store into stack named children.

Here is a kind of structure below.

public class test{

public static void main ( String []args){

Node l1 = {1,2,3};// correct this into a useable code.

Node l2 = {4,5,6};//same need to correct

mix L1 = new mix( l1, l2);

System.out.print(L1);

}

public mix(collection children)

Stack kid = new Stack();

for (Node t :children) {

children.push(t);

}

Please make this code could working.