For the following code, which of the following statements will give an error? public class Base { public void methodOne () { System.out.print("A"); methodTwo () ; } public void methodTwo () { System.out.print("B"); } public void methodThree () { System.out.print("Hello"); } public void methodThree (String s) { System.out.print("Hello, + S); } } class Derived extends Base { public void methodOne () { super.methodOne (); System.out.print("C"); } public void methodTwo () { super.methodTwo (); System.out.print("D"); a. Derived a = new Derived(); b. c. Base b = new Derived(0); Derived d = new Base(); d. Base c = new Base();
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- public static class Lab2{public static void Main(){int idNum;double payRate, hours, grossPay;string firstName, lastName;// prompt the user to enter employee's first nameConsole.Write("Enter employee's first name => ");firstName = Console.ReadLine();// prompt the user to enter employee's last nameConsole.Write("Enter employee's last name => ");lastName = Console.ReadLine()// prompt the user to enter a six digit employee numberConsole.Write("Enter a six digit employee's ID => ");idNum = Convert.ToInt32(Console.ReadLine());// prompt the user to enter the number of hours employeeworkedConsole.Write("Enter the number of hours employee worked =>");// prompt the user to enter the employee's hourly pay rateconsole.Write("Enter employee's hourly pay rate: ");payRate = Convert.ToDouble(Console.ReadLine());// calculate gross paygrossPay = hours * payRate;// output resultsConsole.WriteLine("Employee {0} {1}, (ID: {2}) earned {3}",firstName, lastName, idNum,…public static void printIt(int value) { if(value 0) { } System.out.println("Play a paladin"); System.out.println("Play a white mage"); }else { } }else if (value < 15) { System.out.println("Play a black mage"); System.out.println("Play a monk"); } else { public static void main(String[] args) { printit (5); printit (10); printit (15); Play a black mage Play a white mage (nothing/they are all printed) Play a paladin Play a monkclass Param3 { public int x; private void increase(int p) { x = x*p; } public void calculateX(int y) { increase(y); } public int getX() { return x; } } // in another class Param3 q3 = new Param3(); q3.x = 5; q3.calculateX(7); System.out.println(q3.getX()); what would be the answer for the last two lines ? also above were x = x*p do both x in here are the fields? wouldn't that be cnofusing?
- public class Animal { public static int population; private int age; } public Animal (int age) { this.age = age; population++; } + msg); public void say (String msg) { System.out.print("Saying: " System.out.print(" for "); System.out.print(getHuman Years()); System.out.println(" years."); } public int getHuman Years() { return age; } public class Mammal extends Animal { private String species; public Mammal(String species, int age) { super (age); this. species species; } } } = public int getHuman Years() { if (species.equals("dog")) 1 else return super.getHumanYears() * 7; return super.getHumanYears(); €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);}}public class Base public void methodOne () { System.out.print ("A"); methodTwo (); } } public void methodTwo () { System.out.print("B"); } public void methodThree () { } public void methodThree (String s) { System.out.print("Hello, " + s); } System.out.print("Hello"); } class Derived extends Base { public void methodOne () { super.methodOne (); System.out.print ("C"); } public void methodTwo () { super.methodTwo (); System.out.print("D"); What is the name of the parent class? What is the name of the overloaded method? What is the name of the overriden method? What is the name of the child class? ich of Choose... Choose... Choose... Choose... following statements will give an error?
- public class sample{public static int x = 100;public static int y = 150; }public class newspaper :sample{new public static int x = 1000;static void Main(string[] args){console.writeline(sample.x + " " + sample.y + " " + x);}} 100 150 1000 1000 150 1000 100 150 1000 100 150 100Question public class MyProgram { if (h 18) { public static void main(String[] args) { int h=10, t-22; System.out.print ("Good "); } } else } } What is the output displayed by the following lines of code?" System.out.print ("Morning"); t = t + 2; if (t > 30) System.out.println(" Every one!"); System.out.println("The Your answer system.out.print("Evening"); t = t + 5; temperature is " System.out.println(" Brink water?"); Degree.");10. public static void methodl (int i, int num) { for (int j = 1; j <= i; j++) { " "); System.out.print (num + num *= 2; } System.out.println(); } public static void main(String[] args) { int i = 1; while (i <= 6) { methodl (i, 2); i++; }
- 1) The UsingMethod class consists of a main method and a method called xMethod. What will the code print? public class UsingMethod {public static void main(String[] args) {double z = xMethod(3.5, 5.5);System.out.println(z);}public static double xMethod(double x, double y) {return x + y;}} 2) Identify the errors in the following programs a) 3 errorspublic class Test {public static void main(String[] args) {System.out.println(method2(3.4));} public static int method1(int n) {if (n > 0) return 1;else if (n == 0) return 0;else if (n < 0) return -1;}} b) 2 errorspublic class Test {public static void main(String[] args) {nPrintln(5, "Welcome to Java!");}public static void nPrintln(String message, int n) {for (int i = 0; i < n; i++) {System.out.println(message);}return n;}}public class CallStack{ // Called by func1() void func2 (){ System.out.println("In func2 method"); int a = 0; int b; b = 10 / a; } //Called by Main void func1(){ System.out.println("In func1 method"); this.func2 (); System.out.println("Back in func1 method"); } public static void main (String args[]){ CallStack myCallStack; myCallStack = new CallStack(); System.out.println("In the main method"); try { myCallStack.func1 (); }catch (ArithmeticException e) { System.out.println("Can't divide by Zero!"); } } } Examine the code to determine what it does. Compile and execute the code. Modify the main() method to handle the exception that is propagated to it. Use a try- catch block to display a meaningful error message when the exception occurs. Test your code. Notice that, although the exception was thrown in func2, it is caught by the catch block in the main method.Follow these steps: Open the Java file Errors.java. Attempt to compile the program. You'll notice the compilation will fail due to some errors. Fix all the compilation errors and compile the program again. Every time you fix an error, add a comment to the line you fixed and indicate which of the three types of errors it was. Now run the program. Once again, you'll encounter some errors (this time, runtime errors). Fix these errors and run the program once again to see if it works. Now run the program and notice the output. You'll notice that there are some logical errors in the code. Fix these errors and run the program once again to see if it now correctly displays what it should.