Program 1:
case 20
when 10
puts "TEN";
when 20
puts "TWENTY";
when 30
puts "THIRTY";
when 40
puts "FORTY";
when 50
puts "FIFTY";
else
puts "Unknown number";
end
Program 2:
case (40-10)
when 10
puts "TEN";
when 20
puts "TWENTY";
when 30
puts "THIRTY";
when 40
puts "FORTY";
when 50
puts "FIFTY";
else
puts "Unknown number";
end
Program 3:
case 40
when 80-10
puts "SEVENTY";
when 80-20
puts "SIXTY";
when 80-30
puts "FIFTY";
when 80-40
puts "FORTY";
when 80-50
puts "THIRTY";
else
puts "Unknown number";
end
Program 4
case 40
else
puts "Unknown number";
when 10
puts "TEN";
when 20
puts "TWENTY";
when 30
puts "THIRTY";
when 40
puts "FORTY";
when 50
puts "FIFTY";
end
Program 5:
case 43
when 11..20
puts "Number is within the range of 11 to 20";
when 21..30
puts "Number is within the range of 21 to 30";
when 31..40
puts "Number is within the range of 31 to 40";
when 41..50
puts "Number is within the range of 41 to 50";
else
puts "Unknown number";
end
Ruby on rails programming
Answer Program 1:
Output:
Explanation:
In the above program, we created case blocks. Here, the case 20 matched based on the given value and printed the "TWENTY".
Answer Program 2:
Output:
Explanation:
In the above program, we created case blocks. Here case 30 matched based on the given value and printed the " THIRTY".
Answer Program 3:
Output:
Explanation:
In the above program, we created case blocks. Here, the case 40 matched based on the given value and printed the "FORTY".
Answer Program 4:
Output:
HelloWorld.rb:2: syntax error, unexpected keyword_else, expecting keyword_when else ^~~~ HelloWorld.rb:4: syntax error, unexpected keyword_when, expecting end-of-input when 10 ^~~~Explanation:
The above program will generate errors because we can use "else" at the end of the "case" statement only. The correct program is given below:
Answer Program 5:
Output:
Explanation:
In the above program, we created case blocks. Here, the case 41..50 matched the given number with range, and print the appropriate message.
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