How do I fix the error in Java? Error ---------- Exception occurred while calling Movie.toString() Code: import java.util.*; import java.util.Arrays; public class Movie { private String movieName; private int numMinutes; private boolean isKidFriendly; private int numCastMembers; private String[] castMembers; // default constructor public Movie() { this.movieName = "Flick"; this.numMinutes = 0; this.isKidFriendly = false; this.numCastMembers = 0; this.castMembers = new String[10]; } // overloaded parameterized constructor public Movie(String movieName, int numMinutes, boolean isKidFriendly, String[] castMembers) { this.movieName = movieName; this.numMinutes = numMinutes; this.isKidFriendly = isKidFriendly; this.numCastMembers=0; this.castMembers=new String[castMembers.length]; for(int i=0;i= numCastMembers) return false; castMembers[index] = castMemberName; return true; } // method that determines the equality of two String arrays and returns a // boolean, by comparing the value at each index location. // Return true if all elements of both arrays match, return false if there is // any mismatch. public boolean doArraysMatch(String[] arr1, String[] arr2) { if (arr1 == null && arr2 == null) return true; else if (arr1 == null || arr2 == null) // one of the array is null return false; else if (arr1.length != arr2.length) // length of arrays do not match return false; for (int i = 0; i < arr1.length; i++) { if (!arr1[i].equalsIgnoreCase(arr2[i])) return false; } return true; } public String getCastMemberNamesAsString() { if (numCastMembers == 0) { return "none"; } String names = castMembers[0]; for (int i = 1; i < numCastMembers; i++) { names += ", " + castMembers[i]; } return names; } public String toString() {     //"movie".replaceAll("(?!^)([A-Z])", " $1");    String movie = "Movie: [ Minutes "+String.format("%03d", numMinutes)+" | "+"Movie Name:%s%21s"+" "+"|";    StringBuilder builder = new StringBuilder();    for(int i=0;i<10;i++){        builder.append(" ");    }    //System.out.println(movie.format(movie,builder.toString()));    //System.out.println(movie.replaceAll("(\\w+?)([A-Z])(\\w+?)", "$1 $2$3"));          if (isKidFriendly)        movie +=" is kid friendly |";      else        movie +=" not kid friendly |";    movie +=" Number of Cast Members: "+ numCastMembers+ " | Cast Members: "+" ]";    return String.format(movie,movieName); } public boolean equals(Object o) { // check if o is an instance of Movie if(o instanceof Movie) { Movie other = (Movie)o; // returns true if all the fields are equal return((movieName.equalsIgnoreCase(other.movieName)) && (isKidFriendly == other.isKidFriendly) && (numMinutes == other.numMinutes) && (numCastMembers == other.numCastMembers) && (doArraysMatch(castMembers,other.castMembers))); }    return false; // movies are not equal or o is not an object of Movie } public static void main(String args[]) { } }

How do I fix the error in Java?

Error ---------- Exception occurred while calling Movie.toString()

Code:

import java.util.*;

import java.util.Arrays;

public class Movie

{

private String movieName;

private int numMinutes;

private boolean isKidFriendly;

private int numCastMembers;

private String[] castMembers;

// default constructor

public Movie()

{

this.movieName = "Flick";

this.numMinutes = 0;

this.isKidFriendly = false;

this.numCastMembers = 0;

this.castMembers = new String[10];

}

// overloaded parameterized constructor

public Movie(String movieName, int numMinutes, boolean isKidFriendly, String[] castMembers) {
this.movieName = movieName;
this.numMinutes = numMinutes;
this.isKidFriendly = isKidFriendly;
this.numCastMembers=0;
this.castMembers=new String[castMembers.length];
for(int i=0;i<castMembers.length;++i){
this.castMembers[i] = castMembers[i];
if(castMembers[i]!=null)
this.numCastMembers++;
}

}
// set the number of minutes

public void setNumMinutes(int numMinutes)

{

this.numMinutes = numMinutes;

}

// set the movie name

public void setMovieName(String movieName)

{

this.movieName = movieName;

}

// set if the movie is kid friendly or not

public void setIsKidFriendly(boolean isKidFriendly)

{

this.isKidFriendly = isKidFriendly;

}

// return the movie name

public String getMovieName()

{

return this.movieName;

}

// return the number of minutes

public int getNumMinutes()

{

return this.numMinutes;

}

// return true if movie is kid friendly else false

public boolean isKidFriendly()

{

return this.isKidFriendly;

}

// return the array of cast members

public String[] getCastMembers()

{

// create a deep copy of the array

String[] copyCastMembers = new String[this.castMembers.length];

// copy the strings from the array to the copy

for (int i = 0; i < this.castMembers.length; i++)

{

copyCastMembers[i] = this.castMembers[i];

}

return copyCastMembers;

}

// return the number of cast members

public int getNumCastMembers()

{

return this.numCastMembers;

}

// method that allows the name of a castMember at an index in the castMembers

// array to be changed

public boolean replaceCastMember(int index, String castMemberName)

{

if (index < 0 || index >= numCastMembers)

return false;

castMembers[index] = castMemberName;

return true;

}

// method that determines the equality of two String arrays and returns a

// boolean, by comparing the value at each index location.

// Return true if all elements of both arrays match, return false if there is

// any mismatch.

public boolean doArraysMatch(String[] arr1, String[] arr2)

{

if (arr1 == null && arr2 == null)

return true;

else if (arr1 == null || arr2 == null) // one of the array is null

return false;

else if (arr1.length != arr2.length) // length of arrays do not match

return false;

for (int i = 0; i < arr1.length; i++)

{

if (!arr1[i].equalsIgnoreCase(arr2[i]))

return false;

}

return true;

}

public String getCastMemberNamesAsString()

{

if (numCastMembers == 0)

{

return "none";

}

String names = castMembers[0];

for (int i = 1; i < numCastMembers; i++)

{

names += ", " + castMembers[i];

}

return names;

}

public String toString() {
    //"movie".replaceAll("(?!^)([A-Z])", " $1");
   String movie = "Movie: [ Minutes "+String.format("%03d", numMinutes)+" | "+"Movie Name:%s%21s"+" "+"|";
   StringBuilder builder = new StringBuilder();
   for(int i=0;i<10;i++){
       builder.append(" ");
   }

   //System.out.println(movie.format(movie,builder.toString()));
   //System.out.println(movie.replaceAll("(\\w+?)([A-Z])(\\w+?)", "$1 $2$3"));
         if (isKidFriendly)
       movie +=" is kid friendly |";
     else
       movie +=" not kid friendly |";
   movie +=" Number of Cast Members: "+ numCastMembers+ " | Cast Members: "+" ]";
   return String.format(movie,movieName);
}

public boolean equals(Object o)
{
// check if o is an instance of Movie
if(o instanceof Movie)
{
Movie other = (Movie)o;
// returns true if all the fields are equal
return((movieName.equalsIgnoreCase(other.movieName)) && (isKidFriendly == other.isKidFriendly) && (numMinutes == other.numMinutes)
&& (numCastMembers == other.numCastMembers) && (doArraysMatch(castMembers,other.castMembers)));
}
  
return false; // movies are not equal or o is not an object of Movie
}

public static void main(String args[])

{
}

}