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- 1- public class MathF{ public static void main(String[] args) 3 {char[] grade%=new char[4]; grade[1]='B'; 5 grade[3]='C'; 6 Integer d1= new Integer(6); Integer d2= new Integer(10); 8 if(d1!= d2){ System.out.println("grades do not match "); System.out.println("Result: "+Math.sqrt(d1+d2)); 11 } 12 else 13- { System.out.println("Marks are same"); 14 for (int i-0;i<4;i++) 15 System.out.println(grade[i]); } 16 }} Answer:Each of the following programs contains exactly one syntax error. Find the error and correct it. public static void main(String[] args) { BankAccount a = new BankAccount(500); BankAccount b = new BankAccount(); double c = a.balance + b.balance; System.out.println( “The combined balance is $” + c); } public static void main(String[] args) { BankAccount a = new BankAccount(500); a += 300; System.out.println( “The new balance is $” + a.getBalance()); } public static void main(String[] args) { BankAccount a = new BankAccount(100); a.deposit(500); a.BankAccount(); System.out.println(a.getName() + “ now has a 0 balance”);using System;public static class Lab3_2{public static void Main(){// declare the variables and constantsconst double FLAT = 1.25;double weight;double cost, pricePerKg = 0;// Input the weightConsole.Write("Enter a positive weight of the package => ");weight = Convert.ToDouble(Console.ReadLine());// Determine the cost per kilogramif (weight <= 0)Console.WriteLine("*** Invalid weight");else if (weight < 1)pricePerKg = 0.25;else if (weight <= 3.5)pricePerKg = 0.5;else (weight > 3.5)pricePerKg = 1.0;// Compute the cost to send the packageif (weight > 0)cost = weight * pricePerKg + FLAT;elsecost = 0;// Output the resultsConsole.WriteLine("The cost to send the package is {0:C}",cost);Console.ReadLine();}} Remove the error from the given program and run it for input weight 2.5.
- class Lab4Q1P3 { public static void main(String args[]) { int max = 10;while (max < 10) {System.out.println("count down: " + max);max--;}}} Do you know what is wrong with the program? I know that there is error on the 7th line but I don't know what to fix.Examine this code and determine what happens when it is run: 1 public class Test { int x; 2 3 public Test(String t){ System.out.println("Test"); } public static void main(String[] args) { Test test = new Test ("boo"); System.out.println(test.x); } 4 5 6 7 8 10 } The program has a compile error because Test does not have a default constructor. The program has a compile error because System.out.println method cannot be invoked from the constructor. ) The program runs successfully and prints out: Test O The program has a compile error because you cannot create an object from the class that defines the object.import java.util.Scanner;/** This program calculates the geometric and harmonic progression for a number entered by the user.*/public class Progression{ public static void main(String[] args) { Scanner keyboard = new Scanner (System.in); System.out.println("This program will calculate " + "the geometric and harmonic " + "progression for the number " + "you enter."); System.out.print("Enter an integer that is " + "greater than or equal to 1: "); int input = keyboard.nextInt(); // Match the method calls with the methods you write int geomAnswer = geometricRecursive(input); double harmAnswer = harmonicRecursive(input); System.out.println("Using recursion:"); System.out.println("The geometric progression of " + input + " is " + geomAnswer); System.out.println("The harmonic progression of " +…
- PROBLEM STATEMENT: Return a number, 1 lesser than the given number. public class Decrement{public static int solution(int x){// ↓↓↓↓ your code goes here ↓↓↓↓return 0;}} Can you please use The source code i provided8) Now use the Rectangle class to complete the following tasks: - Create another object of the Rectangle class named box2 with a width of 100 and height of 50. Note that we are not specifying the x and y position for this Rectangle object. Hint: look at the different constructors) Display the properties of box2 (same as step 7 above). - Call the proper method to move box1 to a new location with x of 20, and y of 20. Call the proper method to change box2's dimension to have a width of 50 and a height of 30. Display the properties of box1 and box2. - Call the proper method to find the smallest intersection of box1 and box2 and store it in reference variable box3. - Calculate and display the area of box3. Hint: call proper methods to get the values of width and height of box3 before calculating the area. Display the properties of box3. 9) Sample output of the program is as follow: Output - 1213 Module2 (run) x run: box1: java.awt. Rectangle [x=10, y=10,width=40,height=30] box2: java.awt.…TASK 3. Console Input and Output. Review Scanner class and its methods, Implement the following code, make sure it runs without errors. 1 package 1lessons; 3 import java.util.Scanner; 4 5 public class ReportSum3 { public static void main(String args[]) { Scanner sc = new Scanner(System. in); 60 7 8 // Prompt the user to enter the first integer System.out.println("Enter the value for 'a' and press Enter: "); int a = sc.nextInt(); // Prompt the user to enter the second integer System.out.println("Enter the value for 'b' and press Enter: "); int b = sc.nextInt(); 10 11 12 13 14 15 16 17 18 19 20 21 22 } //Close the Scanner. It's a good practice to release the resource that was acquired sc.close(); // Display the result System.out.printf( "Provided Integers: %4d and %4d, the total is %5d\n", a, b, (a + b)); } To simplify the task, we came out with the idea to use Methods. Implement a method to add two integers.
- FIX THE CODE PROVIDED BELOW Part 2 - Syntax Errors and Troubleshooting The code below has many syntax (and other) errors. Tasks:Compile the code and fix the errors one at a time. // Lab1a.java // This short class has several bugs for practice. // Authors: Carol Zander, Rob Nash, Clark Olson, you public class Lab1a { public static void main(String[] args) { compareNumbers(); calculateDist(); } publicstatic void compareNumbers() { int firstNum = 5; int secondNum; System.out.println( "Sum is: + firstNum + secondNum ); System.out.println( "Difference is: " + (firstNum - secondNum ); System.out.println( "Product is: " + firstNun * secondNum ); } public static void calculateDistance() { int velocity = 10; //miles-per-hour int time = 2, //hoursint distance = velocity * timeSystem.out.println( "Total distance is: " distanace); } } Part 3 - Print Statements and Simple Methods Use "print" and "println" statements, but use method calls to reduce the number of repeated "print"and "println"…In C++ class rectangleType { public: void setLengthWidth(double x, double y); //Sets the length = x; width = y; void print() const; //Output length and width double area(); //Calculate and return the area of the rectangle (length*width) double perimeter(); //Calculate and return the perimeter (length of outside boundary of the rectangle) private: double length; double width; }; Print out the area of the rectangle.