java - Array Index Out Of Bounds Exception

Been looking around to see if anything could help me out but I don't understand much of what people are answering and anything I do understand doesn't seem to solve the issue! So basically as the title says, I'm getting an array index out of bounds exception and I have no idea why. Any help is greatly appreciated.

Code:

import javax.swing.*;

public class Array {
    public static void main(String[] args) {
        double height[] = new double[10];
        String heightAsString;
        int i, over18 = 0, under16 = 0;

        for(i = 1; i <= height.length; i++){

            heightAsString = JOptionPane.showInputDialog("Please Enter The Height Of Person " + i);
            height[i] = Double.parseDouble(heightAsString);

            if(height[i] > 1.8){
                over18 += 1;
            }

            if(height[i] < 1.6){
                under16 += 1;
            }

        }

        JOptionPane.showMessageDialog(null,"The Total Number Of People Over 1.8m Is: " + over18 +
        "\nThe Total Number Of People Under 1.6m Is: " + under16);
    }
}

Answer

for(i = 1; i <= height.length; i++){
        heightAsString = JOptionPane.showInputDialog("Please Enter The Height Of Person " + i);

        height[i-1] = Double.parseDouble(heightAsString);

        if(height[i-1] > 1.8){
            over18 += 1;
        }

        if(height[i-1] < 1.6){
            under16 += 1;
        }
    }

use height[i-1], because array index starts from 0.