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- Write all the code within the main method in the Test Truck class below. Implement the following functionality. a) Constructs two truck objects: one with any make and model you choose and the second object with gas tank capacity 10. b) If an exception occurs, print the stack trace. c) Prints both truck objects that were constructed. import java.lang.IllegalArgumentException ; public class TestTruck { public static void main ( String [] args ) { heres the truck class information A Truck can be described as having a make (string), model (string), gas tank capacity (double), and whether it has a manual transmission (or not). Include the following methods in your class definition. . An overloaded constructor which takes the make and model. This method throws an IllegalArgumentException if the make is "Jeep". An overloaded constructor which takes the gas tank capacity. This method throws an IllegalArgumentException if the capacity of the gas…2. Using Encapsulation concept for Test1 class. package Exam; public class Test1 { private static int index = 0; public int x; Test1(){ index ++; } public static int getlndex () { return index; } public void prints(){ System.out.println("Hi Students!"); } } public class Test2 extends Test1 { @Override public void prints(){ System.out.println("OOP!"); } } public class Main { public static void main(String[] args) { } }public class MyGenClass { private T1 name; private T2 stulD; private T3 CGPA; public void setStuData( ){ l parameters name = n; stulD = d: CGPA = g; public void printAsString() { System.out.printin( '): # print all Information as string public static void main(String args||) { Il Create an object stu by parameters String, Integer, Double II Call setStuData() with any values you like Il Call printAsString()
- public class MyGenClass { private T1 name; private T2 stulD; private T3 CGPA; public void setStuData( ){ I/ parameters name = n; stulD = d: CGPA = g; } public void printAsString() { System.out.println( } ); I/ print all information as string public static void main(String args||) { Il Create an object stu by parameters String, Integer, Double Il Call setStuData() with any values you like /l Call printAsString() } }class overload { int x; double y; void add(int a , int b) { x = a + b; } void add(double c , double d) { y = c + d; } overload() { this.x 0; %3D this.y = 0; } %3D } class Overload_methods { public static void main(String args[]) { overload obj int a = 2; double b - 3.2; obj.add(a, a); obj.add(b, b); System.out.println(obj.x + } = new overload(); + obj.y); } #3Run the codepublic class TestWord { public static void main(String[] args) { /* Word w1 = new Word("Go Cubs Go", "Cub"); System.out.println("New Word object"); System.out.println("Superclass word: " + w1.getSentence()); System.out.println("Subclass word: " + w1.getNoVowelsWord()); System.out.println("Is word a substring of sentence? " + w1.isSubstring()); System.out.println(); Word w2 = new Word("Applepie", "Apple"); System.out.println("New Word object"); System.out.println("Superclass word: " + w2.getSentence()); System.out.println("Subclass word: " + w2.getNoVowelsWord()); System.out.println("Is word a substring of sentence? " + w2.isSubstring()); System.out.println(); System.out.println("w1 and w2 are the same? " + w1.equals(w2)); */ } }
- public 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) {…Description: Create a class named ComparableDog that extends Animal and implements Comparable interface. Implement the compareTo method to compare the Dogs on the basis of age. Write a test class to find the bigger age of two instances of ComparableDog Objects, and complement the ComparableDog class with the missing part. 1) The test program, the ComparableDog class, and its super class Animal are given as follows. // Main method public static void main(String[] args) { // Create two comparable Dogs ComparableDog dog1 = new ComparableDog(3); ComparableDog dog2 = new ComparableDog(4); System.out.println("Dog1:" + dog1); System.out.println("Dog2:" + dog2); if(dog1.compareTo(dog2) == 1) System.out.println("Dog1 is older than Dog2"); else if(dog1.compareTo(dog2) == -1) System.out.println("Dog1 is younger than Dog2"); else System.out.println("Dog1 and Dog2 have the same age"); }…public class SharedCounter {int counter = 0;public static void main(String [] args) throws InterruptedException{IntCell intCell = new IntCell();//Create incrementer and decrementer objects and pass intCell to the constructor. //Call .start() on both, then .join() on both.//Finally, print the value of intcell: intCell.getVal();} } class IntCell{private int val = 0;synchronized void increment() {val++;}synchronized void decrement() {val--;}int getVal() {return this.val;}} class Incrementer extends Thread{//IntCell reference //Set via parameterized constructor //Override the run method with a for loop that runs 10000 times and calls intCell.increment();} class Decrementer extends Thread{//IntCell reference //Set via parameterized constructor //Override the run method with a for loop that runs 10000 times and calls intCell.decrement();}
- How many objects are eligible for garbage collection after the execution of line 8? 1.public class Test 2.{ 3. public static void main(String args) 4. { 5. Test t1 = new Test(); 6. Test t2 = m1(t1); 7. Test t3 = new Test(); 8. t2 = t3; 9. } static Test m1(Test temp) 10. 11. { 12. temp = new Test(); 13. return temp: 14. } 15.} 1 None 21class 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 Average { /** * @param args */ publicstaticvoid main(String[] args) { Scanner input = new Scanner(System.in); System.out.print("Enter the number of classes: "); intnumClasses = input.nextInt(); int[] numStudents = newint[numClasses]; inttotalStudents = 0; for (inti = 0; i < numClasses; i++) { System.out.print("Enter the number of students in class " + (i + 1) + ":"); numStudents[i] = input.nextInt(); totalStudents += numStudents[i]; } intaverageStudents = totalStudents / numClasses; System.out.println("The average number of students per class is " + averageStudents); System.out.println(); System.out.println("Class\tNumber of Students"); for (inti = 0; i < numClasses; i++) { System.out.print((i + 1) + "\t\t" + numStudents[i]); } } } Write a Java program that solves the following problem. Name your class Average. Your program will determine the average number of students per class in a school. It should begin by requesting the number of classes in…