How can I solve this programming question for Clara would?

Practical 5 Problem 4: Checkerboard with boolean

This code that I found in courshero does not work:

class MyClara extends Clara {

int currentposition = 0;

void run() {

while (!treeLeft() && !treeFront()) {

while (!treeFront()) {

if (currentposition%2 == 0) {

putLeaf();

}

move();

++currentposition;

}

}

turnLeft();

move();

turnLeft();

currentposition = 0;

}

}

Spring 2022 > Practical 5 - Variables Problem 4-Checkerboard with boolean In this exercise, your job is to get Clara to create a checkerboard pattern of leaves inside an empty rectangular world (Figure 1), and produce the world similar to what is shown in Figure 2. Figure 1. While producing your solution for this problem you must use at least one variable (a good idea is to make this variable of type boolean). This variable should be used to help Clara with memorising the direction of her current movement. The simplest way to approach this problem is to base your solution around the sample code for ClaraCleaner from Lecture 3. But here, instead of cleaning the world you must produce the checkerboard pattern.