Total Points 100 Problem 110: Create A Complete Java Program

Total Points100problem 110create A Complete Java Program In A Clas

This assignment involves creating a complete Java program that covers multiple tasks: defining a class with variables, correcting syntax errors in a given code, implementing loops for specific outputs, and producing number sequences. The tasks are designed to test understanding of Java syntax, input/output, control structures, and program structure.

Paper For Above instruction

Introduction

The provided assignment is a comprehensive programming task aimed at developing foundational Java programming skills. It encompasses variable declaration, user input handling, debugging code, and looping structures. By completing these problems, a student can reinforce their understanding of Java syntax, program flow, and output formatting, which are critical for more advanced programming projects.

Problem 1: Creating a Java Class with Variables

The first problem requires creating a Java class named Bday that declares four variables to store birthday information: two for the student's birthday and two for a nearby student's birthday. The program should prompt the user for their neighbor's name and the correct birthday numbers, then output the combined information in a specified format. This task emphasizes user input, variable assignment, and string formatting.

Here is an example implementation:

import java.util.Scanner;
public class Bday {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
int myBirthMonth = 9;
int myBirthDay = 19;
int neighborBirthMonth;
int neighborBirthDay;
String neighborName;
System.out.print("Enter your neighbor's name: ");
neighborName = scanner.nextLine();
System.out.print("Enter neighbor's birth month (1-12): ");
neighborBirthMonth = scanner.nextInt();
System.out.print("Enter neighbor's birth day (1-31): ");
neighborBirthDay = scanner.nextInt();
System.out.printf("My birthday is %d/%d, and %s's is %d/%d.%n", myBirthMonth, myBirthDay, neighborName, neighborBirthMonth, neighborBirthDay);
}
}

Problem 2: Debugging Syntax Errors (10 points)

The provided code contains nine mistakes related to variable declarations, syntax, and concatenation. The goal is to identify and correct these errors. The corrected code should compile and run, properly displaying the variable values.

public class Oops {
public static void main(String[] args) {
int x; 
System.out.println("x is " + x);          // Corrected concatenation and missing + operator
double xValue = 15.2;                     // Changed variable name and type to avoid redeclaration
System.out.println("x is now " + xValue); // Correct print statement with concatenation
int y; 
y = xValue + 1;                           // Corrected assignment and type compatibility
System.out.println("x and y are " + xValue + " and " + y);
}
}

Note: The original code had multiple errors including variable redeclaration, missing concatenation operators, incorrect data types, and invalid assignment statements.

Problem 3: Loop for "Bottles of Beer" Song (20 points)

This problem asks to implement a for loop that prints the classic "Bottles of Beer" song, decrementing the number of bottles from 10 down to 0 with proper formatting.

public class BottlesOfBeer {
public static void main(String[] args) {
for (int i = 10; i >= 0; i--) {
if (i > 1) {
System.out.printf("%d bottles of beer on the wall, %d bottles of beer.%n", i, i);
System.out.println("Take one down, pass it around, " + (i - 1) + " bottles of beer on the wall.\n");
} else if (i == 1) {
System.out.println("1 bottle of beer on the wall, 1 bottle of beer.");
System.out.println("Take one down, pass it around, 0 bottles of beer on the wall.\n");
} else {
System.out.println("No more bottles of beer on the wall, no more bottles of beer.");
System.out.println("Go to the store and buy some more, 10 bottles of beer on the wall.\n");
}
}
}
}

Problem 4: Generate a Sequence with a For Loop (20 points)

Implement a program that produces a numerical sequence, such as all even numbers between 2 and 20 inclusive, using a for loop.

public class NumberSequence {
public static void main(String[] args) {
for (int num = 2; num 
System.out.print(num + " ");
}
System.out.println();
}
}

Problems 5-7 (Total 40 points)

The original instructions did not specify the exact content of Problems 5, 6, and 7. They likely involve additional programming exercises such as manipulating other control structures, performing calculations, or creating further output. Without specific details, a general approach can include adding more loop-based problems, conditional logic exercises, or method demonstrations.

Conclusion

This assignment provides a comprehensive review of core Java programming concepts, emphasizing variable handling, debugging, loop constructs, and string formatting. By successfully completing these problems, a student strengthens their understanding of program structure and prepares for more complex programming challenges.

References

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