Please take a look at the todo part and help with the following code! Thank you so much!

package fp;

import java.math.BigDecimal;

import java.util.ArrayList;

import java.util.Comparator;

import java.util.Map;

import java.util.function.

$*$

;

import java.util.stream.Collectors;

import java.util.List;

class ExerciseNotCompletedException extends RuntimeException

$\{$

$$ public ExerciseNotCompletedException

$($

$)$

$\{$

$$ super

$($

$"$

Exercise is not completed yet"

$)$

;

$$

$\}$

$\}$

$/$

$*$

$*$

$$

$*$

$\{$

@link HW

$\}$

$$is an exercise class. Each method returns a functional interface and it should be implemented

$$

$*$

$$using either lambda or a method reference. Every method that is not implemented yet throws

$$

$*$

$\{$

@link ExerciseNotCompletedException

$\}$

$.$

$$

$*$

$$

$$

$*$

$$TODO: remove exception and implement each method of this class using lambda or method reference

$$

$*$

$/**$

$*$ Returns an $\{$@link IntUnaryOperator$\}$ that receives an int as a bound parameter, and returns a random int

$*$

$*$ @return int operation

$*/$

public static IntUnaryOperator boundedRandomIntSupplier$()\{$

throw new ExerciseNotCompletedException$()$;

$\}$

$/**$

$*$ Returns $\{$@link IntUnaryOperator$\}$ that calculates an integer square

$*$

$*$ @return square operation

$*/$

public static IntUnaryOperator intSquareOperation$()\{$

throw new ExerciseNotCompletedException$()$;

$\}$

$/**$

$*$ Returns a $\{$@link LongBinaryOperator$\}$ sum operation.

$*$

$*$ @return binary sum operation

$*/$

public static LongBinaryOperator longSumOperation$()\{$

throw new ExerciseNotCompletedException$()$;

$\}$

$/**$

$*$ Returns a $\{$@link ToIntFunction$\}$ that converts string to integer.

$*$

$*$ @return string to int converter

$*/$

public static ToIntFunction stringToIntConverter$()\{$

throw new ExerciseNotCompletedException$()$;

$\}$

$/**$

$*$ Receives int parameter n$,$ and returns a $\{$@link Supplier$\}$ that supplies $\{$@link IntUnaryOperator$\}$

$*$ that is a function f$($x$)=$ n $*$ x

$*$

$*$ @param n a multiplier

$*$ @return a function supplier

$*/$

public static Supplier nMultiplyFunctionSupplier$($int n$)\{$

throw new ExerciseNotCompletedException$()$;

$\}$

$/**$

$*$ Returns a $\{$@link UnaryOperator$\}$ that accepts str to str function and returns the same function composed with trim

$*$

$*$ @return function that composes functions with trim$()$ function

$*/$

public static UnaryOperator$>$ composeWithTrimFunction$()\{$

throw new ExerciseNotCompletedException$()$;

$\}$