For-loop in java:

When you know exactly how many times you want to loop through a block of code, use the for loop instead of a while loop.

Syntax:

for(statement 1;statement 2;statement 3)
{
//
//
//
}

Statement 1 :is executed (one time) before the execution of the code block.

Statement 2 :defines the condition for executing the code block.

Statement 3: is executed (every time) after the code block has been executed.

Example:

for( int i=0; i<5; i++)
{
System.out.println(i);
}

Example program:

public class For
{

	public static void main(String[] args) 
	{
            int box = 6012374; 
	    int total = 0; 
	    int count = 0; 
	    //while(box>0)
	    for (box=6012374; box>0; count++) //for loop
	{
	 System.out.println("Hi"); 
	 int rem = box%10; 
	 total = total + rem; //4	3	2	1
	 box=box/10;
	 //count++; 
	}
	System.out.println("Count of Digits " + count); 
	System.out.println("Sum of Digits " + total); 

 }
}

Output: