Decode School

Decode School - The School for Problem Solvers
Welcome to My Blog.
Need Assignment / Project Guidance (or) Training in Python?

Java Program to print the first digit of a given number

Get input num and display the first digit of number num

Sample Input 1:

675

Sample Output 1:

The fisrt digit is :6

Program or Solution

					    
							
					    
					

Program Explanation

Instruction(s) inside the while block{} are executed repeatedly till expression (num>=10) is true.

Divide the number num by 10 untill it becomes lesser than 10.

once it is less than 10 print the num using system.out.println.

statement num = num/10 divides the num by 10 repeatedly untill it num is less than 10