A public static method named computeSum() is located in ClassA. To call the method from within ClassB, use the statement _____. a. ClassA.computeSum(); b. ClassB(computeSum()); c. ComputeSum(ClassA); d. You cannot call computeSum() from within ClassB.

Which of the following method declarations is correct for a static method named computeSum() if the method receives two double arguments? a. public static double, double computeSum() b. public static void computeSum(double a, double b) c. public int computeSum(double a, double b) d. public static int computeSum(double a, b)

Which of the following is an example of a non-static method? (Select whichever applicable)Question 9Answera.void displayMessage() {}b.public static void printName() {}c.public void calculateSum() {}d.private static int x = 10;

class Calculator {    public static int add(int a, int b) {        return a + b;    }    public static int add(int a, int b, int c) {        return a + b + c;    }}public class Main {    public static void main(String[] args) {        int result1 = Calculator.add(10, 20);        int result2 = Calculator.add(10, 20, 30);        System.out.println("Result1: " + result1 + ", Result2: " + result2);    }}a.Result1: 30, Result2: 60b.Result1: 20, Result2: 30c.None of the aboved.Compilation Error

public class ArithmeticOperation{  private void add(int operand1, int operand2)  {     System.out.println(operand1 + operand2);  }}public class Addition extends ArithmeticOperation{  public void show()  {     add(10, 12);  }   public static void main(String args[])   {     Addition ob = new Addition();      ob.show();   }}What will be the output of above code when compiled and executed?Select one:a.Runtime error as add method is not defined in MethodOverriding classb.Will print falsec.Will compile and display 1012d.Compile time errore.Will compile and display 32

Trong một abstract class, khai báo nào sau đây hợp lệ?doneprivate static long note = 100;final abstract void doSomething(int things);public abstract int getTotal(int a, int b) {return 0;}static void writeIt(String a) {System.out.println(a);}