Question

1. Assuune the following declaralions (whiclh ae used to process singly-linked lists) static class Node public int data public Node next And the following statomons have bocn cxccutcd. Node p1, p2, p3; p1 new NodeO: p2 new NodeO: p3ew NodeO: Tell what will be displayed by each of he code segies r explaiu why u eror occurs, 1) pl.data-123 p2.data-456; p 1-next=p2. p2.next-null // output results Systei.out.il"%". pl.dala, l.e.data) 2) pl.data- 123: p2.data 456; pl p2: f output results Systom.out.printf( ,'90d %dal", pl.data, p2.data); 3) pl.data-123; p2.data 136: pl next-p2 p2.next-null: // output rosults System.out.print( "%d %d'n", p2.data, p2.next.data) 4) pl.data 123; p2.data-456 p3.data-456; pl.next p2

Answer 1

Output:

1)

123 456

p1.data = 456

p1.next.data = p2.data = 456

2)

456 456

p1.data = p2.data = 456

p2.data = 456

3)

runtime error

p2.data = 456

but p2.next = null, so p2.next.data will give runtime error.

4)

p1.data = 123

p1.next.data = p2.next = 456

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