Answer Posted / ashish ani

//DEVELOPED BY ASHISH ANI
// THEATRE SEAT RESERVATION PROGRAMME
class SeatAllocation
{
private int a[][];
private int ls[];
private char sr[]={'A','B','C','D','E','F','G','H','I','J'};
public SeatAllocation()
{
a=new int[10][20];
ls=new int[10];
for(int i=0;i<10;i++)
{
for(int j=0;j<20;j++)
a[i][j]=0;
ls[i]=20;
}
}
public static void main(String[] arg)
{
SeatAllocation sa=new SeatAllocation();
//CHANGE ACCORDING TO YOUR REQUIREMENT
sa.book(Integer.parseInt(arg[0]));
sa.book(Integer.parseInt(arg[1]));
sa.book(Integer.parseInt(arg[2]));
sa.book(Integer.parseInt(arg[3]));
sa.display();

}
public void display()
{
System.out.println("Current Seat Status : ");
for(int i=0;i<10;i++)
{
System.out.println("");
for(int j=0;j<20;j++)
{
System.out.print(" "+a[i][j]);
}
}
System.out.println("");
}
public void book(int n)
{
if(n<=20)
{
int ir=-1;
for(int i=9;i>=0;i--)
{
if(ls[i]>=n)
{ ir=i;
break;}
}
if(ir!=-1)
{
System.out.print("BOOKED SEATS ARE : ");
for(int j=0;j<n;j++)
{
System.out.print(" "+sr[ir]+""+(21-ls[ir]+j));
a[ir][20-ls[ir]+j]=1;
}
ls[ir]=ls[ir]-n;
System.out.println("");
}
else
{
System.out.println("Sorry !! Required Seats Not Available");
}

}
else
{
System.out.println("Only 20 tickets can be booked at a time");
}
}

}

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