# Java Programming : Print natural numbers using for loop

#### Example

```java
Input
5
Output
1
2
3
4
5
```

#### Required to know

#### Use of **Variables**, Use of different operators like **assignment or arithmetic operators**, Use of methods like **System. out.print(),** and use **for loop**, **and** Use of **Data types.**

#### Steps

* Take range as 5.
    
* Run a for loop with the range 5, without any incrementation of 2. Such that it prints only natural numbers.
    
* Print the 5 natural numbers.
    

Case 1: - this one is when the range is already mentioned, like how many numbers you have to print.

```java
import java.util.Scanner; 
public class number {

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in); 
        int n = 5; 
        for(int i = 1; i<=5;i++){
            System.out.println(+i); 
        }
    }
}
```

Case 2: - this one is when the range is not defined, but we are taking it as an input from the user.

```java
import java.util.Scanner; 
public class number {

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in); 
        int n; 
        System.out.print("Enter the number"); 
        n = sc.nextInt(); 
        for(int i = 1; i<=5;i++){
            System.out.println(+i); 
        }
    }
}
```