Triangle Star Print In Java

Question: 

Print the following pattern for the given N number of rows.

Pattern for N = 4

*
**
***
****

Ans: 

package HelloWorld;

import java.util.Scanner;

public class LearningJava {

public static void main(String[] args) {

This is boiler plate of Java

public static void main(String[] args) {

Scanner scan = new Scanner(System.in);

int n = scan.nextInt();

for(int i=1;i<=n;i++) {

for(int j=1;j<=i;j++) {

System.out.print("*");

}

System.out.println();

}

}

}

1. Yaha ham ek Scanner le rhe hai scan ke name se .
2. int n liya hai user se number input lene ke liye
3. ham ek for loop le rhe aur loop me int i variable le rhe hai ham row/outer loop ke liye jise ham 1 se start kr rhe .
4. i<=n mtlb i . n se chota hoga ya n (user ke number) ke barabar hoga tb tk ye loop chlega , yah ek termination operator hai.
5. iske bad ham i++ se ise increment kr rhe yaani aage bdha rhe.
6. dubara hamne ek for loop liya hai jisme int j rkha hai yah ek inner loop/column ke liye rkha hai.
7. j=1 yaani ki column me print j 1 se start ho rha 
8. j<=i  mtlb j , i se chota hoga lekin i ke barabar hoga tb tk ye loop chlega. example ke liye i hamara 2 row me hai aur 2 column hi print hoga , agr 3 row hai to us row me 3 column hi print hoga 
9. j++ se ham ise increment kr rhe .