Chapter 10, Problem 10PE

Program Plan Intro

Earthquake

Program plan:

Earthquake.Java:

• Create a class named “Earthquake”. Inside the class,
  • Declare the required variables.
  • Definition of constructor “Earthquake”.
    • Assign “magnitude” to “richter”.
  • Definition of method “getDescription()”.
    • Declare the required variables.
    • Check the condition whether “richter” is less than 8.0.
      • Assign the statement to the variable.
        • Check the condition whether “richter” is less than 7.0.
        • • Assign the statement to the variable.
        • Check the condition whether “richter” is less than 6.0.
        • • Assign the statement to the variable.
        • Check the condition whether “richter” is less than 4.5.
        • • Assign the statement to the variable.
        • Return the value.

EarthquakerFrame.java

• Import required packages
• Create a class named “EarthquakeFrame”. Inside the class,
  • Declare the required variables.
  • Definition of constructor “EarthquakeFrame”.
    • Create an object for “Earthquake”.
    • Call the method to create buttons and panel.
    • Set the width of the frame.
  • Definition of method “createLabelsAndTextField ()”.
    • Declare the required variable.
    • Create a label for result and magnitude.
  • Definition of class “QuakeListener ()”.
    • Definition of method “actionPerformed()”.
      • Get the magnitude from the user.
      • Create an object for “Earthquake()”.
      • Print the effect.
  • Definition of method “createButtons ()”.
    • Create a button for condition.
    • Create an object for “QuakeListener()”.
    • Add action listener to the condition button.
  • Definition of method “createPanel ()”.
    • Create an object for “Jpanel”.
    • Add the button to the frame.

BnakAccountViewer.java

• Import required packages.
• Create a class named “EarthquakeViewer”. Inside the class,
  • Definition of “main()” method
    • Declare the variable.
    • Create an object for “EarthqakeFrame”.
    • Set the frame title.
    • Close the frame.
    • Set the title for frame.
    • Set the visibility.