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Create a method that takes a value and indicate whether it is positive or negative by a return a
Boolean value.
Declared as: boolean isPositive (float a)
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- Using Java, Write a method named isEven that accepts an int argument. The method should return true if the argument is even, or false otherwise. Also write a program to test your method.Create a method that takes a value and indicate whether it is positive or negative by a return aBoolean value.Declared as: boolean is Positive (float a) in javaWrite a method with the following header to display threenumbers in decreasing order:public static void displaySortedNumbers(double num1, double num2, double num3)Write a test program that prompts the user to enter three numbers and invokes themethod to display them in decreasing order.
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- Create a method where a goblin will attack a zombie as long as the zombie has no health, otherwise the zombie is already dead. If the zombie has 0 or less health, the attack method should add 10 health to the zombie, bringing them closer to being alive so that they will be dead it should then return the zombies health. If the health of the zombie is positive the attack method should return "Zombie is alive, therefore it is not a zombie!". NOTE: This problem statement is extremely vague. This is to test how well you follow directions.Predict the return type of the below method.public static _______ calculate(int a , double b){return a+b;} Choose an answer A int B boolean C double D floatWrite a method called DisplayHorizontalStars(int numberOfStars). This method will output the number of stars horizontally specified by its argument. Call the DisplayHorizontalStars() method three times from your program Main() method, supplying 0, 5 and 10 respectively for the number of stars. Write a method similar to the one above that displays a vertical line of stars.Call this method three times with arguments 0, 5 and 10 respectively. Write a method that accepts an argument of type double. The method will calculate and display the volume of a sphere with radius specified by its argument. [ ].Call this method from your main three times, with arguments 1, 2, and 10 respectively. The answers are 4.1888, 33.5103 and 4188.7902 respectively.Use Math.PI for the value of Write a method that takes two arguments: a cost price and a two-letter province code. It will calculate and display the selling price. (If province is Ontario a tax of 13% is added to the price, if the province is…