Q:

Ruby basics – Find output programs (set 1)

robaa
Save to bookmark
|
2022-11-22
|
  768 
0

Program 1:

def main
    print "Hello World";
    puts "Hello World";
end

Program 2:

def main
    int num = 20;
    string msg = "Hello World"
    
    puts "Num: ", num;
    puts "Message: ", msg;
end

main();

Program 3:

def main
    num = 20;
    msg = "Hello World"
    
    puts "Num: ", num;
    puts "Message: ", msg;
end

main();

Program 4:

def main
    num = 20;
    msg = "Hello World"
    
    print "Num: ", num;
    print "Message: ", msg;
end

main();

Program 5:

def main
    num = 20;
    msg = "Hello World"
    
    println "Num: ", num;
    println "Message: ", msg;
end

main();
Ruby on rails programming, examples, Ruby on rails programming examples,
login and add your own answer to this question

All Answers

robaa
2022-11-22
need an explanation for this answer? contact us directly to get an explanation for this answer

Answer Program 1:

Output:

Nothing will print.

Explanation:

In the above program, we created a method main(), but we did not call it. That is why nothing will be printed.

Answer Program 2:

Output:

main.rb:2:in `main': undefined method `int' for main:Object (NoMethodError)

Explanation:

The above program will generate a syntax error because "int" and "string" are not any predefined datatype in ruby.

 

Answer Program 3:

Output:

Num: 
20
Message: 
Hello World

Explanation:

In the above program, we created an integer variable num and a string variable msg. Then we printed the value of variables using the puts() method. The puts() method prints the newline by default.

Answer Program 4:

Output:

Num: 20Message: Hello World

Explanation:

In the above program, we created an integer variable num and a string variable msg. Then we printed the value of variables without newline character using the print() method.

Answer Program 5:

Output:

main.rb:5:in `main': undefined method `println' for main:Object (NoMethodError)

Explanation:

The above program will generate a syntax error because println() is not a predefined method in ruby.

need an explanation for this answer? contact us directly to get an explanation for this answer

total answers (1)

This question belongs to these collections

Similar questions

need a help?

find thousands of online teachers now