(Solved): how can I correct these things import java.awt. Color; import edu.princeton.cs.introcs.StdDraw: ...

how can I correct these things

import java.awt. Color; import edu.princeton.cs.introcs.StdDraw: public class mini02_Design i public static void setPenColor(Color color) ( StdDraw. setPencolor (color) ; 1 public static void circle (double $x$, double $y$, double radius) $?$ StaDraw, circle $(x,y$, radius ): 1 public static void filledSquare (double $x$, double $y$, double halftength) 1 StaDraw. filledSquare $(x,y$, halflength): ) public static void main (String[] args) [ int $n=20;//$ Default value if (args.length $>0$ ) \{ $\mathrm{n}=$ Integer.parseInt $(\mathrm{args}[0])$; 3 if $(n<2?1,n>50)\{$ System. out.println ("Value for $\mathrm{n}$ is incorrect. Value of $\mathrm{n}$ must be between return; \} int DesignSize $=400/\mathrm{n};//$ Adjusted size based on $\mathrm{n}$ int sheetSize $=n?$ DesignSize; StdDraw. setCanvasSize (sheetSize, sheetSize) ; StdDraw. setXscale $(0$, sheetSize); StdDraw. setyscale $(0$, sheetSize) ; for (int $i=0;i<n$; i+t) \& for (int $j=0;j<n;j++$; \{ double centerX $=(i+0.5)?$ DesignSize; double centerY $=(j+0.5)?$ DesignSize; if $((i+j)\&2=0)1$ setPenColor (Color.RED); filledSquare(centerX, centerY, DesignSize / 2): \} else 1 setPenColor (Color. BLACK) ; circle(centerX, centerY, Designsize / 2): 1 ) J \} \}