Hello I need some help with a Java Robot control program i'm developing. Below is the code I have so far in the RobotControl.java file. public class RobotControl { private Robot r; public RobotControl(Robot r) { this.r = r; } public void control(int barHeights[], int blockHeights[]) { // Internally the Robot object maintains the value for Robot height(h), arm-width (w) and picker-depth (d). // These values are displayed for your convenience // These values are initialised as h=2 w=1 and d=0 // When you call the methods up() or down() h will be changed // When you call the methods extend() or contract() w will be changed // When you call the methods lower() or raise() d will be changed // sample code to get you started // Try running this program with obstacle 555555 and blocks of height 123 (default) // It will work move topmost block part of the way // You are free to introduce any other variables int h = 2;// Initial height of arm 1 int w = 1;// Initial width of arm 2 int d = 0;// Initial depth of arm 3 int sourceHt = 6;// For Parts A and B 1+2+3 = 6 int targetHt1 = 0; // Initially empty int targetHt2 = 0; // Initially empty int targetHt3 = 0; // Initially empty int barHt = 3; // height of block just picked int clearence = 10; // this causes unnecessary moves // you should be set considering the heights of bars, source, targets and current block while ( h < clearence ) { r.up(); h++; } while ( w < 10 ) { r.extend(); w++; } while ( h - d > sourceHt + 1 ) { r.lower(); d++; } r.pick(); int blockHt = 3; // currently the topmost block is of height 3 sourceHt -= blockHt; // after picking source height goes down by the block height while ( d > 0 ) { r.raise(); d--; } int targetWidth = 3; // as the topmost block is of height 3 it should be dropped in column 3 while ( w > targetWidth) { r.contract(); w--; } while ( h - d - blockHt > targetHt3 + 1 ) { r.lower(); d++; } r.drop(); } } Code (markup): I want my program to assume all the bars are of height 5 units and the blocks are of heights 1 (bottom), 2 and 3 (top) units. I want to be able to move all the blocks to the respective targets. Could anyone please help me with this. I'm stuck and don't know what to do next. Thanks.