Page 1: Program Structure and Initial Calculations

The first page introduces the main structure of the Java program for implementing the quadratic formula.

The code begins with package and import statements, followed by the main class declaration. It then declares variables for the quadratic equation coefficients (a, b, c) and other necessary values.

The main method includes:

• A program header
• User input for coefficients and x-value
• Calculations for y-value and vertex points
• Checks for points on the parabola and existence of roots

Vocabulary: Quadratic formula (ABC formula) - A mathematical formula used to solve quadratic equations of the form ax² + bx + c = 0.

Example: The program uses Console.readDouble() to get user input for the coefficients a, b, c, and the x-value.

Highlight: The code demonstrates how Java programming functions by breaking down complex calculations into smaller, manageable methods.

Definition: System.out.println() - A Java method used to print output to the console. This answers the question "Was macht System Out Print in Java?" (What does System.out.print do in Java?)

Page 2: Method Implementations

The second page focuses on the implementation of various methods used in the program.

Key methods include:

1. programmkopf(): Prints the program header.
2. berechneYWert(): Calculates the y-value for a given x-value.
3. berechneScheitelpunktXS(): Computes the x-coordinate of the vertex.
4. berechneScheitelpunktYS(): Calculates the y-coordinate of the vertex.
5. istPunktAufParabel(): Checks if a point lies on the parabola.

Example: The berechneYWert method calculates the y-value using the formula y = ax² + bx + c.

Highlight: These methods showcase how to add Java mathematics to programs, demonstrating the language's capability for complex calculations.

Quote: "Punkt ist auf Parabel" (Point is on the parabola) - This output indicates when a point lies on the parabola.

Vocabulary: Scheitelpunkt - The German term for vertex, the highest or lowest point of a parabola.