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population problem plz help me befor 16 March 2011 !!
2 Answer(s)      6 years and a month ago
Posted in : Java Beginners

the Q is : How can i count how many years it will take for the population of a town to go over 30.000 .. consider that it Increases 10% every year ?? And this is my code & i don't where is the mistake ?? Note : i have to use while or do while only ..

import java.util.Scanner; public class popu { public static void main (String [] args ) { int countYear = 1; int popu = 0; double popuCount = popu + ( popu * 0.1);

System.out.println("pleas enter population :" );
Scanner keyboard  = new Scanner (;
popu = keyboard.nextInt();

while     ( popu < 30000);{

System.out.println( popuCount);
//System.out.println("huge people !!");


System.out.println(); System.out.println("thx");




View Answers

March 15, 2011 at 12:31 AM

Hi, Try this Mate

import java.util.Scanner;

public class popu {

public static void main(String[] args) {
    int countYear = 1;
    int popu = 0;

    System.out.println("pleas enter population :");
    Scanner keyboard = new Scanner(;
    popu = keyboard.nextInt();

    while (popu < 30000) {


    System.out.println("No of Years Required for population above 30000 are :"+countYear);
      System.out.println("huge people !!");



March 15, 2011 at 12:51 AM

thx =^.^=

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