Identify the user-defined method based on the program given below. public class Mark { int mark1, mark2; public int set (int ml, int m2) { mark1 = ml; mark2 =m2 int total ml+m2; %3D return total; public class mark_test { public static void main( String args) { Mark ml = int total = ml.set(80,90); } } = new Mark); %3D O a. Method with parameter. O b. Method without parameter and with return type O c. Method with parameter and with return tvpe
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- FOR JAVA, with StdDraw, and StdRandom Write a static method histogram() that takes an array a[ ] of int values and an integer M as arguments and returns an array of length M whose ith entry is the number of times the integer i appeared in the argument array. If the values in a[ ] are all between 0 and M–1, the sum of the values in the returned array should be equal to a.length.in java Re-implement the Rational class : class Rational {private int numerator;private int denominator;public Rational(int num, int den) {numerator = num;denominator = den;}public Rational add(Rational o) {int NumResult = numerator * o.denominator + denominator * o.numerator;int DenResult = denominator * o.denominator;return simplify(NumResult, DenResult);}public Rational sub(Rational o) {int NumResult = numerator * o.denominator - denominator * o.numerator;int DenResult = denominator * o.denominator;return simplify(NumResult, DenResult);}public Rational mul(Rational o) {int NumResult = numerator * o.numerator;int DenResult = denominator * o.denominator;return simplify(NumResult, DenResult);}public Rational div(Rational o) {int NumResult = numerator * o.denominator;int DenResult = denominator * o.numerator;return simplify(NumResult, DenResult);}private int gcd(int a, int b) {if (b == 0)return a;return gcd(b, a % b);}private Rational simplify(int num, int den) {int gcdValue =…this code is in java.Explore the given classes. Implement a getter method on the WasteRobot class with the following method signature public ArrayList<Waste> getWasteBin(String wasteType) The method should return the proper waste bin based on the passed wasteType. Compare the given wasteType to each of the public static final constants in the Waste class to help determine which bin to return.Given Classes :WasteRobotTester.java import java.util.*; public class WasteRobotTester{ public static void main(String[] args) { WasteRobot wallie = new WasteRobot(); // Your test code. }}WasteRobot.java import java.util.*; public class WasteRobot{ private ArrayList<Waste> trashBin; private ArrayList<Waste> compostBin; private ArrayList<Waste> recyclingBin; public WasteRobot() { trashBin = new ArrayList<Waste>(); compostBin = new ArrayList<Waste>(); recyclingBin = new ArrayList<Waste>();…
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