Page 627 - Computer science 868 Class 12
P. 627
56 voiddelrear()
57 {
58 if(f==-1&&r==-1)
59 {
60 System.out.println("Queue empty");
61 }
62 else if(f<=r)
63 {
64 System.out.println("Deleting"+a[r]);
65 r--;
66 }
67 else
68 {
69 System.out.println("Queue empty");
70 }
71 }
72 void display()
73 {
74 for(int i=f;i<=r;i++)
75 {
76 System.out.println(a[i]+",");
77 }
78 }
79 public static void main()
80 {
81 Scanner sc = new Scanner(System.in);
82 dqueob = new dque(5);
83 intx,y,ch;
84 do
85 {
86 System.out.println("1. Insert from rear 2. Insert from front 3. Empty from
rear 4. Empty from front 5. Display");
87 ch = sc.nextInt();
88 switch(ch)
89 {
625
Internal Assessment 625

