Question 36 2.5 pts public class Bag<T extends Number> T dat; public Bag( T dat )...
public class Polymorph public static class CAL public void printHello System.out.println("Hya"); public static class w extends CAC public void printHello System.out.println("Howdy"); public static class PB extends WE public void printtello System.out.println("Hello") public static void main(String[] args) { A l = new CÁO: CA ab - (CA) new W(); CA ac - (CA) new PC); Wbc - (W) new P80; 33.printHello(); ab.printHello(); ac.printHello(); be.printHello(); Type your answer, do not copy/paste
What is the output of the following code? class C1 { public double PI=3.1; public void m1() { System.out.println("M1 of C1"); } } class C2 extends C1 { public double PI=3.14; public void m1() { System.out.println("M1 of C2"); } } public class C { public static void main(String[] args) { C1 obj = new C2(); System.out.print(obj.PI); } } 3.1 3.14 None of the above
What is the output of the following code? class C1 { public double PI=3.1; public void m1() { System.out.println("M1 of C1"); } } class C2 extends C1 { public double PI=3.14; public void m1() { System.out.println("M1 of C2"); } } public class C { public static void main(String[] args) { C1 obj = new C2(); obj.m1(); } } M1 of C1 M1 of C2 None of the above
This is for a java program public class Calculation { public static void main(String[] args) { int num; // the number to calculate the sum of squares double x; // the variable of height double v; // the variable of velocity double t; // the variable of time System.out.println("**************************"); System.out.println(" Task 1: Sum of Squares"); System.out.println("**************************"); //Step 1: Create a Scanner object //Task 1. Write your code here //Print the prompt and ask the user to enter an...
Draw a UML class diagram (with associations) to show the design of the Java application. public class OOPExercises { public static void main(String[] args) { //A objA = new A(); B objB = new B(); System.out.println("in main(): "); //System.out.println("objA.a = "+objA.getA()); System.out.println("objB.b = "+objB.getB()); //objA.setA (222); objB.setB (333.33); //System.out.println("objA.a = "+objA.getA()); System.out.println("objB.b = "+objB.getB()); } } public class A { int a = 100; public A() {...
Define the Bag class in the file Bag.java with the following structure. Define the public methods listed, including the constructors. You may add fields to the class as necessary. // A class representing a bag of items public class Bag { } // Construct a bag, initially empty, with the indicated weight that it can hold (in ounces) public Bag ( int weight ) { ... } // Construct a bag, initially empty, with an assumed weight of 20 ounces....
What is the output of following program: public class Test{ public static void main(String[] args) { A a = new A(): a method B(): } } class A{ public A(){ System out println("A's constructor is executed"): } public void method(){ System out printin ("methodA is executed"): } public void methodAB(){ System out printin ("As methodAB is executed"): } } class B extends A { private int num = 0: public B (){ super(): System out printin ("B's constructor is executed"):...
Consider the following codes: public class TestThread extends Thread { public static void main(String[] args) { TestThread thread = new TestThread(); } @Override public void run() { printMyName(); } private void printMyName() { System.out.println("Thread is running"); } } Test Stem / Question Choices 1: What method should you invoke to start the thread TestThread? A: start() B: run() C: No. Thread will run automatically when executed. D: TestThread is not...
For Questions 1-3: consider the following code: public class A { private int number; protected String name; public double price; public A() { System.out.println(“A() called”); } private void foo1() { System.out.println(“A version of foo1() called”); } protected int foo2() { Sysem.out.println(“A version of foo2() called); return number; } public String foo3() { System.out.println(“A version of foo3() called”); Return “Hi”; } }//end class A public class B extends A { private char service; public B() { super(); System.out.println(“B() called”);...
For Questions 1-3: consider the following code: public class A { private int number; protected String name; public double price; public A() { System.out.println(“A() called”); } private void foo1() { System.out.println(“A version of foo1() called”); } protected int foo2() { Sysem.out.println(“A version of foo2() called); return number; } public String foo3() { System.out.println(“A version of foo3() called”); Return “Hi”; } }//end class A public class B extends A { private char service; public B() { super(); System.out.println(“B() called”); } public...