Thread: Logic to implement a program to display decimal place of a number

Hello chronoz13,

if (num1 < 0) should work. See this example:

public class Chronoz13 {
 
    /**
     * JavaProgrammingForums.com
     */
    public static void main(String[] args) {
 
        int myInt = -5;
 
        if(myInt < 0){
            System.out.println("Oi! No negative numbers!");
        }
    }
}

As expected, because the number is below 0, the Oi! No negative numbers! String is printed.

sorry for not posting my problem briefly,actually sir. its not my only problem..
ill post the code

import java.io.*;
public class Main
 
{
 
    private static BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
 
    public static void main(String[] args)throws IOException
 
    {
 
 
        String number1,number2,number3;
        int num1,num2,num3,decimalPlaces=0;
 
        System.out.print("Enter a number : ");
        number1=br.readLine();
        num1=Integer.parseInt(number1);
 
        System.out.print("Enter the second number : ");
        number2=br.readLine();
        num2=Integer.parseInt(number2);
 
        System.out.print("Enter the third number : ");
        number3=br.readLine();
        num3=Integer.parseInt(number3);
 
         if
                     (num<=9)                                              /* this part is running perfectly down to the
                      decimalPlaces=decimalPlaces+1;          third condition,if the number is <=999
                                                                                           */
        else if
                     (num1<=99)                                        
                     decimalPlaces=decimalPlaces+1;  
 
        else if 
                    (num1<=999)
                    decimalPlaces=decimalPlaces+2;
 
 
        else 
 
 
 
                System.out.println("Cannot proceed");
 
                System.out.print("The first number has "+decimalPlaces+" decimalplaces");
 
}
}

the program is totally running it doesnt have syntax erros

but the problem is ,its not running the way i expect to.

the first three condition is running perfectly as i want to.. but in the last condition,
if i entered number below 0 (negative numbers), it prints the condition ("CANNOT PROCEED")

BUT IT ALSO PRINTS THE OTHER STRING ("the first number has " +decimalPlaces + " ");


the only thing that i want to happen is this
if i entered positive numbers then it will print the decimal places according to the condition that i make ,and it will print the string ("The first number has " +decimalPlaces+ " son on...");

but if i entered negative numbers , the last condition will automatically do its job and print ONLY the string ("CANNOT PROCEED");

just having some structure problem here..

anyway sir.. tnx !!