do while loop java 问题

import java.util.Scanner;

public class Exam {

public static void main(String[] args) {
Scanner input = new Scanner(System.in);
double[] x = new double[2];
int n = 0;
do {
System.out.print("Enter a number (-ve to finish): ");
x[n] = input.nextDouble();
if (x[n] >= 0) {
n++;
}
System.out.println("n=" + n);
} while ((n < 2) && (x[n] <= 0));

}
}
我想问e条code 点解我 入1 佢仲会继续run 而唔会直接出output??
我while 条件 ((n < 2) && (x[n] <= 0)); 我入1 唔系应该即出??

你都写明当n < 2继续run 啦.