Question 7 Analyze the following code.
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- Question 2 Analyze the following code. // Program 1 public class Test{ public static void main(String[] args) { Object al = new A0); Object a 2 = new A0); System.out.println(((A)a 1).equals((A)a 2)); } } class A { int x; public boolean equals(A a) { return this.x == a.x; } } // Program 2 public class Test{ public static void main(String[] args) { A a1 = new A(); A a2 = new A0); System.out.println(a1.equals(a2)); } } class A { int x; public boolean equals(A a) { return this.x == a.x; } } Program 1 displays true and Program 2 displays true Program 1 displays false and Program 2 displays true O Program 1 displays true and Program 2 displays false Program 1 displays false and Program 2 displays falseAnalyse the following code. public class Test { int x; public Test(String t) { System.out.println("Test"); } public static void main(String[] args) { Test test = new Test(); System.out.println(test.x); } } A. The program has a compile error because you cannot create an object from the class that defines the object. B. The program has a compile error because System.out.println method cannot be invoked from the constructor. C. The program has a compile error because x has not been initialized. D. The program has a compile error because Test does not have a default constructor.class class { public static void main(String args[]) { int a =5; int b =10; first: { second: { third: { if(a == b >>1) break second; } System.out.println(a); } System.out.println(b); } } } Give result for the code Java Try to do ASAP
- public class Test { } public static void main(String[] args){ int a = 10; System.out.println(a*a--); }class operators { public static void main(String args[]) { int x = 8; System.out.println(++x * 3 + " " + x); } } Give result for the code Java Try to do ASAP ?Put a box around your answers for the outputs. Determine the output for #1 - 5, 1. int i = 2; while (i 0; i = i - 1) System.out.print( "yes"); 5. int total : 4; int i = 2; while (i < 5) total = total * i; is i+ 1; System.out.printIn("The total is " + total); 6. Rewrite #5 above using a for loop instead of a while loop.
- class 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?Find error and correct it : public class ProgramLayout { public static void main (String[] args) { final double PI = 3.14159; double x; double sum = x+PI ; System.out.println (sum); } // end classpublic class LabProgram { public static void main(String args[]) { Course cis162 = new Course(); int beforeCount; String toDrop; // Example students for testing cis162.addStudent(new Student("Henry", "Nguyen", 3.5)); cis162.addStudent(new Student("Brenda", "Stern", 2.0)); cis162.addStudent(new Student("Lynda", "Robison", 3.2)); cis162.addStudent(new Student("Sonya", "King", 3.9)); toDrop = "Stern"; beforeCount = cis162.countStudents(); cis162.dropStudent(toDrop); System.out.println("Course size: " + beforeCount + " students"); System.out.println("Course size after drop: " + cis162.countStudents() + " students"); } } import java.text.DecimalFormat; // Class representing a student public class Student { private String first; // first name private String last; // last name private double gpa; // grade point average // Student class constructor public Student(String f, String l, double g) {…
- 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;}}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++; }QUESTION 4 Analyze the following code: public class Test { public static void main (String [] args) { int i = 0; while (i ++ < 10); System.out.println(i + 4); The program compiles despite the semicolon () on the for loop line, and displays 15. The program has a compile error because of the semicolon (;) on the while loop line. The program compiles despite the semicolon (:) on the while loop line, and displays 4.