Ruby program to compare two strings by ignoring case

Program/Source Code:

The source code to compare two strings by ignoring the case is given below. The given program is compiled and executed successfully.

# Ruby program to compare two strings 
# by ignoring case

Str1 = "Hello";
Str2 = "hello";
Str3 = "Hello";
Str4 = "Hi";

if (Str1.casecmp(Str2)==0)
    print "Str1 and Str2 are equal\n";
else
    print "Str1 and Str2 are not equal\n";
end

if (Str1.casecmp(Str3)==0)
    print "Str1 and Str3 are equal\n";
else
    print "Str1 and Str3 are not equal\n";
end

if (Str1.casecmp(Str4)==0)
    print "Str1 and Str4 are equal\n";
else
    print "Str1 and Str4 are not equal\n";
end

Output:

Str1 and Str2 are equal
Str1 and Str3 are equal
Str1 and Str4 are not equal

Explanation:

In the above program, we created 4 variables Str1, Str2, Str3, Str4 that are initialized with "Hello", "hello", "Hello", "Hi".  Then we compared string variables using the casecmp?() method and printed the appropriate message.