Consider the given array and answer the questions given below:

int z[ ] [ ] = { {2, 3, 4}, {5, 1, 2}, {7, 9, 3}};

(a) What is the order of the array z[ ][ ]?

(b) What is the value in z[2][0]?

Give the output of the following:

(a) "ROSE".compareTo("ROJA")

(b) "DEDICATE".replace('D', 'L')

class perform 
{ 
int  m;  String name; 
perform(int x, String y) 
{ 
m=x; 
name=y; 
} 
void print()  
{ 
System.out.print(name + "     " + m); 
}      
public static void main() 
{ 
perform ob1=new perform(95 , "Xavier"); 
ob1.print();
} 
}

(a) Give the output of the code given above.

(b) Name the type of the constructor used.

Define a class with following specifications.
class name: Hotel
Member variables:
String name – stores name of customer name
long mobno – stores mobile number
int days – stores number of days customer stayed in hotel
int bill – stores customer bill

Member method:
void input() – input values using Scanner class methods only
void charge() – calculate bill as per the following criteria

days	charge/day
first 3 days	1000 Rs/ day
next 4 days	900 Rs/day
> 7 days	800 Rs/day

bill = bill + gst (18% of bill)

void print() - Display customer name, mobile number and bill.

Invoke all the above methods in main method with the help of an object.