Question

Write a class called WhereIsMyNumber. WhereIsMyNumber must have a main method. Your program must ask for a number (it must work if user enters numbers with decimal point of not). Then your program must print number is negative -- if humber is negative number in [0,10) -- if it is between 0 and 10, not including the 10 number in [10,100) -- if it is between 10 and 100, not including the 100 number in [100,1000) -- if it is between 100 and 1000, not including the 1000 number greater than 1000 -- if it is greater than 1000

Answer 1

// WhereIsMyNumber.java



import java.util.Scanner;

public class WhereIsMyNumber {

        public static void main(String[] args) {
                
                Scanner sc = new Scanner(System.in);
                
                System.out.print("Enter a number : ");
                
                // As per condition it might contain decimal points also
                float n = sc.nextFloat();
                
                if(n < 0) {
                        
                        // if number is less than zero then below will be printed
                        System.out.println("Number is negetive");
                        
                }else if( n >= 0 && n < 10) {
                        
                        // if number is in between 0 and 10 excluding 10
                        // below statement will be printed
                        System.out.println("Number is [0,10)");
                        
                }else if( n >= 10 && n < 100 ) {
                        
                        // if number is in between 10 and 100 excluding 100
                        // below statement will be printed
                        System.out.println("Number is [10,100)");
                        
                }else if( n >= 100 && n < 1000 ) {
                        
                        // if number is in between 100 and 1000 excluding 1000
                        // below statement will be printed
                        System.out.println("Number is [100,1000)");
                        
                }else if( n >= 1000 ) {

                        // if number is greater than or equal to 1000
                        // below statement will be printed
                        System.out.println("Number is greater than 1000");
                        
                }
                
                sc.close();
                
        }

}

Outputs:

Testcase #1

Testcase #2

Testcase #3

Testcase #4

Testcase #5