Checking negative even number

Write a program that is supposed to read 500 integers from user. Use a break statement to stop the reading if any negative even number is entered. Display that number
Can anyone write the pseudocode for this question?
The thing that bothers me is that a negative even number, How do I write the code to stop this one?
Can anyone also write the computation part? I'd do the remaining whole body. Thank you ( Just a rough figure will help a lot ) Thanks

xcoder wrote:
Write a program that is supposed to read 500 integers from user. Use a break statement to stop the reading if any negative even number is entered. Display that number
Can anyone write the pseudocode for this question?
The thing that bothers me is that a negative even number, How do I write the code to stop this one?
Can anyone also write the computation part? I'd do the remaining whole body. Thank you ( Just a rough figure will help a lot ) Thanks
pseudo code:
read 500 integers
if less than 0 and even
display number
stopto check if negative:
if(myNumber<0){do something here}to check if even:
myTest = myInt/2;
if(myInt == (myTest*2)){do something here}BTW: there are other ways of doing this, but you should have been able to at least think of this one.

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How to add a check if entered number is even

hi!
I need some help. I need user to enter the size of the figure to be printed out. It has to ba an even number (otherwise it will print out with error). I need to add a check if entered size is an even number, otherwise display an error message and prompt user for entering the size again. If it is an even number the program should proceed and print out a figure. Any suggestions for the piece of code I need to add? Many thanks in advance!
import java.util.*;
public class Question2 {
public int Size;
public static void main(String[] args) {
Scanner keyboard = new Scanner(System.in);
System.out.print("Please enter the size of a triangle you want to print out (it has to be an even number): ");
int Size = keyboard.nextInt();{
if (Size%2==0){
line(Size);
drawtop(Size);
middleline(Size);
drawbtm(Size);
line(Size);
public static void line(int Size) {
System.out.print("|");
for (int i = 1; i <= Size / 2; i++) {
System.out.print("-");
System.out.print("*");
for (int i = 1; i <= Size / 2; i++) {
System.out.print("-");
System.out.print("|");
System.out.println(" ");
public static void drawtop(int Size) {
for (int line = 1; line <= Size / 2; line++) {
System.out.print("|");
for (int space = 1; space <= Size / 2 - line; space++) {
System.out.print(" ");
for (int star = 1; star <= (line * 2 + 1); star++) {
System.out.print("*");
for (int space = 1; space <= Size / 2 - line; space++) {
System.out.print(" ");
System.out.println("|");
public static void middleline(int Size) {
System.out.print("*");
for (int i = 1; i <= Size / 2; i++) {
System.out.print("**");
System.out.println("**");
public static void drawbtm(int Size) {
for (int line = 1; line <= Size / 2; line++) {
System.out.print("|");
for (int space = 1; space <= line - 1; space++) {
System.out.print(" ");
for (int star = -1; star <= (2 * Size / 2 - 2 * line) + 1; star++) {
System.out.print("*");
for (int space = 1; space <= line - 1; space++) {
System.out.print(" ");
System.out.println("|");
}

Its really unbelievable that if you have written the code of printing triangles by yourself, how you got stuck at a trivial problem like this. Please just dont copy and paste the code for completing your assignments.
Anyway the solution is trivial and I am giving you a work-through-:
Think what the if condition is doing in the below code :
if (Size%2==0){
} It does nothing.
You need a condition in which to print a message to ask user to input an even number and ask again if the number is not even. Doesnt this look like that u need a loop, And you dont know the how many times to loop but you do know when to end the loop. SO you need a WHILE loop with appropriate condition checked of even number.
Now I hope you can complete the program.

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what is doing the %2 here, prome' ?If there are an even number of char symbol in String s, then s.length() - s.replace(""+symbol, "").length() will also be even. So that number mod 2 will equal zero (and return true).

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I want to find out largest odd number and the smallest even number from an arry numbers? What is the best method to achieve this.
Thanks
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You need to sit down and figure out an algo on how you would do it if you had to do the same thing from a blind container perspective:
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Checking negative even number

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