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// Example12.3
//A program to open a file named INVENTORY and store in it the following
// data: Item name Number Price Quantity
// AAA-1 111 17.50 115
// BBB-2 125 36.00 75
// C-3 247 31.75 104
//Extend the program to read this data from the file INVENTORY and display
//inventory table with the value of each item.
disp("Input file name");
filename=scanf("%s"); //Read file name that is 'INVENTORY'
fp=mopen(filename,'w'); //Open file in write mode,fp is file descriptor
disp("Input inventory data");
disp("Item name Number Price Quantity");
for i=1:3
//read data from terminal
[n,item(i),number(i),price(i),quantity(i)]=mscanf("%s %d %f %d");
//write data to the file
mfprintf(fp,'%s\t%d\t%.2f\t%d\n',item(i),number(i),price(i),quantity(i));
end
mclose(fp); //close the file
fp=mopen(filename,'r'); //open file in read mode
disp("Item name Number Price Quantity Value");
for i=1:3
//Read data from the file 'INVENTORY'
[n,item,number,price,quantity]=mfscanf(fp,"%s %d %f %d");
value=price*quantity; //Computes value
//Printing of the data
printf(' %s %7d %8.2f %8d %11.2f\n',item,number,price,quantity,value);
end
mclose(fp);
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