Q. How do you insert a node at the beginning of the list? (Solved)
1. public class insertfront(int data){node node = new node(data, head, head.getnext());node.getnext().setprev(node);head.setnext(node);size++;}
2. public class insertfront(int data){node node = new node(data, head, head);node.getnext().setprev(node);head.setnext(node);size++;}
3. public class insertfront(int data){node node = new node(data, head, head.getnext());node.getnext().setprev(head);head.setnext(node);size++;}
4. public class insertfront(int data){node node = new node(data, head, heagetnext());node.getnext().setprev(node);heasetnext(node.getnext());size++;}
- a. public class insertfront(int data){node node = new node(data, head, head.getnext());node.getnext().setprev(node);head.setnext(node);size++;}