In this program, we will create three strings then we will check a given string starts with a specified substring using the start_with?() function and return a Boolean value.
The source code to check a string starts with a specified substring is given below. The given program is compiled and executed successfully.
# Ruby program to check a string starts
# with a specified substring
str = "Hello, how are you";
substr1 = "Hello";
substr2 = "hello";
if str.start_with?(substr1)
print "String 'str' is start with sub-string 'substr1'\n";
else
print "String 'str' is not start with sub-string 'substr1'\n";
end
if str.start_with?(substr2)
print "String 'str' is start with sub-string 'substr2'\n";
else
print "String 'str' is not start with sub-string 'substr2'\n";
end
Output:
String 'str' is start with sub-string 'substr1'
String 'str' is not start with sub-string 'substr2'
Explanation:
In the above program, we created three strings str, substr1, substr2. Then we used start_with?() function to check a string start with a specified substring or not and printed the appropriate message.
Program/Source Code:
The source code to check a string starts with a specified substring is given below. The given program is compiled and executed successfully.
Output:
Explanation:
In the above program, we created three strings str, substr1, substr2. Then we used start_with?() function to check a string start with a specified substring or not and printed the appropriate message.
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