package citytech.calculator; public class Calculator { public static void main(String[]args) { System.out.println("Basic Calculator"); //declaring variable: //dataType variableName = value ; double num1 = 10.0; double num2 = 30.0; sum(num1, num2); multiply(num1, num2); } public static void sum(double n1, double n2) { double result = n1 + n2; System.out.println("Sum: "+result); } public static void multiply(double n1, double n2) { double result = n1 * n2; System.out.println("Multiply: "+result); } }     Question: Please Check the Calculator app and add subtract and division methods

Fix all logic and syntax errors. Results Circle statistics area is 498.75924968391547 diameter is 25.2     // Some circle statistics public class DebugFour2 {    public static void main(String args[])    {       double radius = 12.6;       System.out.println("Circle statistics");       double area = java.Math.PI * radius * radius;       System.out.println("area is " + area);       double diameter = 2 - radius;       System.out.println("diameter is  + diameter);    } }

1 public class Main { 1234567 7 8 9 10 11 ENERGET 12 13 14 15 16 17 18} public static void main(String[] args) { String present = ""; double r = Math.random(); // between 0 and 1 if (r > >>

public class Turn{public static void main(String[] args){// Different initial values will be used for testingint x = 1; int y = 1; // Turn the arrow by 90 degrees System.out.print("x:", y + 90);System.out.println(x);System.out.print("y: ", x - 1 );System.out.println(y); // Turn the arrow again System.out.print("x:", y - 1);System.out.println(x);System.out.print("y: ",x + 90);System.out.println(y);}}

class Artist{StringsArtist(const std::string& name="",int age=0):name_(name),age_(age){}std::string name()const {return name_;}void set_name(const std::string& name){name_=name;}int age()const {return age_;}void set_age(int age){age_=age;}virtual std::string perform(){return std::string("");}private:int age_;std::string name_;};class Singer : public Artist{public:Singer():Artist(){};Singer(const std::string& name,int age,int hits);int hits() const{return hits_;}void set_hits(int hit);std::string perform();int operator+(const Singer& rhs);int changeme(std::string name,int age,int hits);Singer combine(const Singer& rhs);private:int hits_=0;};int FindOldestandMostSuccess(std::vector<Singer> list);   Task:  Implement the function int Singer::changeme(std::string name,int age,int hits) : This function should check if the values passed by name, age and hits are different than those stored. And if this is the case it should change the values. This should be done by…

int stop = 6;   int num =6;   int count=0;   for(int i = stop; i >0; i-=2)   {   num += i;   count++;   }       System.out.println("num = "+ num);   System.out.println("count = "+ count);   }   }

JAVA CODE: check output

class Artist{StringsArtist(const std::string& name="",int age=0):name_(name),age_(age){}std::string name()const {return name_;}void set_name(const std::string& name){name_=name;}int age()const {return age_;}void set_age(int age){age_=age;}virtual std::string perform(){return std::string("");}private:int age_;std::string name_;};class Singer : public Artist{public:Singer():Artist(){};Singer(const std::string& name,int age,int hits);int hits() const{return hits_;}void set_hits(int hit);std::string perform();int operator+(const Singer& rhs);int changeme(std::string name,int age,int hits);Singer combine(const Singer& rhs);private:int hits_=0;};int FindOldestandMostSuccess(std::vector<Singer> list);   Implement the function Singer Singer::combine(const Singer& rhs):It should create a new Singer object, by calling the constructor with the following values: For name it should pass a combination of be the name of the calling object followed by a '+' and then…

Fix all errors to make the code compile and complete. //MainValidatorA3 public class MainA3 { public static void main(String[] args) { System.out.println("Welcome to the Validation Tester application"); // Int Test System.out.println("Int Test"); ValidatorNumeric intValidator = new ValidatorNumeric("Enter an integer between -100 and 100: ", -100, 100); int num = intValidator.getIntWithinRange(); System.out.println("You entered: " + num + "\n"); // Double Test System.out.println("Double Test"); ValidatorNumeric doubleValidator = new ValidatorNumeric("Enter a double value: "); double dbl = doubleValidator.getDoubleWithinRange(); System.out.println("You entered: " + dbl + "\n"); // Required String Test System.out.println("Required String Test:"); ValidatorString stringValidator = new ValidatorString("Enter a required string: "); String requiredString =…

public class Side Plot { * public static String PLOT_CHAR = "*"; public static void main(String[] args) { plotxSquared (-6,6); * plotNegXSquaredPlus20 (-5,5); plotAbsXplus1 (-4,4); plotSinWave (-9,9); public static void plotXSquared (int minX, int maxx) { System.out.println("Sideways Plot"); System.out.println("y = x*x where + minX + "= minX; row--) { for (int col = 0; col row * row; col++) { System.out.print (PLOT_CHAR); if (row== 0){ } System.out.print(" "); } for(int i = 0; i <= maxx* maxX; i++) { System.out.print("-"); } System.out.println(); Sideways PHOT y = x*x where -6<=x<=6 Sideways Plot y = x*x where -6<=x<=6 How do I fix my code to get a plot like 3rd picture?