1.

What Is The Output Of This Program? 1. Import Java.util.*; 2. Class Linkedlist { 3. Public Static Void Main(string Args[]) { 4. Linkedlist Obj = New Linkedlist(); 5. Obj.add("a"); 6. Obj.add("b"); 7. Obj.add("c"); 8. Obj.addfirst("d"); 9. System.out.println(obj); 10. } 11. }

Answer»

OBJ.addFirst(“D”) METHOD is used to add ‘D’ to the START of a LinkedList object obj.

Output:

$ javac Linkedlist.JAVA
$ java Linkedlist
[D, A, B, C]

obj.addFirst(“D”) method is used to add ‘D’ to the start of a LinkedList object obj.

Output:

$ javac Linkedlist.java
$ java Linkedlist
[D, A, B, C]



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