Thread: Help understanding for-loop

I am fairly new to programming, I just had a quick question as to why the fallowing code prints the way it does. Also I am new to this forum and any direction to online resources would be greatly appreciated.

public class print{




public static void main (string[] args){




int i=1;

int j;




while (i<=7){

for(j=1;j<=i;j=j+3)

System.out.print("*");

i=i+2

System.out.println();

}

}

}


the output is :
*
*
**
***

To "Debig" sutch snipplets put more system prints inside the code.
In a nitshell:
On each while block method execution it will print as many *, as for loop will iterate times.

Possible values for j are [1,4,7]
Possible values for i [1..7]
1. Loop *
i=1 j=1 (because 1 + 3 = 4> 1)
2. Loop *
i=3
j=1 (because 1 + 3 = 4> 3)
3. Loop **
i=5
j=1, j=4
4 .Loop ***
i=7
i=1,j=4,j=7

Welcome to the forum! Please read this topic to learn how to post code in code or highlight tags and other useful info for new members.

The Oracle Tutorials are a great place to start.