Ask Programiz - Human Support for Coding Beginners

Hi Nuthakki,

No. To print a number, do not use quotes:

print(5)
print(10.5)

Quotes are only for text. If you write "5", Python treats it as a string, not a number.

If you have more questions, I am here to help 😊

Hi Roll rider,

It should be #include , not studio.h.

#include adds the standard input/output library in C, so you can use functions like printf() and scanf().

If you write studio.h, the compiler cannot find that header, so you get an error.

If you have more questions, I am here to help 😊

Hi Steve,

Use the modulo operator %. It gives the remainder after division.

Example:

print(14 % 3)  # 2

So 14 % 3 is 2, because 14 divided by 3 leaves 2 leftover.

If you have more questions, I am here to help 😊

Hi Akash,

Coding matters because it lets you tell a computer what to do, so you can solve problems faster and automate boring tasks.

It also helps you build useful things like websites, apps, games, and tools, and it is a skill used in many careers.

If you have more questions, I am here to help 😊

Hi Krithi,

java.util.Scanner is used to take input from the user, like reading a number or a word from the keyboard.

class Main is the main container for your program. Java code must be inside a class, and the program starts running from the main() method inside that class.

Example:

import java.util.Scanner;

class Main {
  public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    int x = sc.nextInt();
    System.out.println(x);
  }
}

If you have more questions, I am here to help 😊

Hi Sujan,

Because in Python, # means comment. Anything after # on that line is only a note for humans, so Python ignores it when running the code.

Example:

# this will be skipped
print(34.0)  # this part is also skipped

Only print(34.0) runs.

If you have more questions, I am here to help 😊

Hi Manfred,

Yes, you can define a function after main(). The only difference is that if main() calls that function, you should write a function prototype above main() so the compiler knows the function exists.

Example:

int findSquare(int n);  // prototype

int main() {
    printf("%d", findSquare(5));
    return 0;
}

int findSquare(int n) {  // definition after main
    return n * n;
}

If the function is defined before main(), you usually do not need the prototype.

If you have more questions, I am here to help 😊

Hi guerfi,

There is no difference. f"..." and F"..." both mean an f-string, and they work the same.

Example:

name = "Alice"
print(f"Hi {name}")
print(F"Hi {name}")

Both print the same output.

If you have more questions, I am here to help 😊

Hi Shashank,

Datatypes tell the computer what kind of value something is, like a number, text, or true/false. This helps the language know what operations make sense.

Common Python datatypes:

• int for whole numbers like 5

• float for decimals like 5.6

• str for text like "hello"

• bool for True or False

If you have more questions, I am here to help 😊

Hi Anupama.s.,

Keywords in C are reserved words that have a fixed meaning in the language, so you cannot use them as variable or function names.

Examples: int, return, if, else, for, while, break, continue.

If you have more questions, I am here to help 😊