In a game of Battleship, after a ship has been placed on the ocean (10 x 10 grid), shadows are placed in the spaces adjacent to the ship. This means that other ships cannot be placed in those shadow spaces. 'isOccupied' will return true if a location contains a ship. Is it possible to add some comments, line by line, of what happens in this block of code please? I cannot work it out and fear that I am overcomplicating things.

public void setShadow() {

for (int i = 0; i < 10 ;
i++){

for (int j = 0;
j < 10; j++) {

if (this.isOccupied(i,j)) {

for (int k = -1; k < 2;
k++) {

for (int m
= -1; m < 2; m++ ) {

if ((i + k >= 0) && (i + k <= 9)
&& (j + m >= 0) && (j + m <= 9)) {

shadow[i + k][ j+ m] =
true;

}

}

}

}

}

}

}

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