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12.15 (Displaying Events) It's often useful to display the events that occur during the execution of an application. This can help you understand when the events occur and how they're generated. Write an application that enables the user to generate and process every event discussed in this chap- ter. The application should provide methods from the ActionListener, ItemListener, ListSelec- tionListener, MouseListener, MouseMotionListener and KeyListener interfaces to display messages when the events occur. Use method toString to convert the event objects received in each event handler into Strings that can be displayed. Method toString creates a String containing all the information in the event object.

12.15 (Displaying Events) It's often useful to display the events that occur during the execution of an application. This can help you understand when the events occur and how they're generated. Write an application that enables the user to generate and process every event discussed in this chap- ter. The application should provide methods from the ActionListener, ItemListener, ListSelec- tionListener, MouseListener, MouseMotionListener and KeyListener interfaces to display messages when the events occur. Use method toString to convert the event objects received in each event handler into Strings that can be displayed. Method toString creates a String containing all the information in the event object.

Database System Concepts
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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I have a question in my home work related computer programming lesson. The following below is my question (12.15). Please advice. Thank you

12.14 (Guess-the-Number Game) Write an application that plays “guess the number” as follows: Your application chooses the number to be guessed by selecting an integer at random in the range 1-1000. The application then displays the following in a label: I have a number between 1 and 1000. Can you guess my number? Please enter your first guess. A JTextField should be used to input the guess. As each guess is input, the background color should change to either red or blue. Red indicates that the user is getting "warmer," and blue, "colder." A JLabel should display either "Too High" or "Too Low" to help the user zero in. When the user gets the correct answer, "Correct!" should be displayed, and the JTextField used for input should be changed to be uneditable. A JButton should be provided to allow the user to play the game again. When the JButton is clicked, a new random number should be generated and the input JTextField changed to be editable. 12.15 (Displaying Events) It's often useful to display the events that occur during the execution of an application. This can help you understand when the events occur and how they're generated. Write an application that enables the user to generate and process every event discussed in this chap- ter. The application should provide methods from the ActionListener, ItemListener, ListSelec- tionListener, MouseListener, MouseMotionListener and KeyListener interfaces to display messages when the events occur. Use method toString to convert the event objects received in each event handler into Strings that can be displayed. Method toString creates a String containing all the information in the event object.
Transcribed Image Text:12.14 (Guess-the-Number Game) Write an application that plays “guess the number” as follows: Your application chooses the number to be guessed by selecting an integer at random in the range 1-1000. The application then displays the following in a label: I have a number between 1 and 1000. Can you guess my number? Please enter your first guess. A JTextField should be used to input the guess. As each guess is input, the background color should change to either red or blue. Red indicates that the user is getting "warmer," and blue, "colder." A JLabel should display either "Too High" or "Too Low" to help the user zero in. When the user gets the correct answer, "Correct!" should be displayed, and the JTextField used for input should be changed to be uneditable. A JButton should be provided to allow the user to play the game again. When the JButton is clicked, a new random number should be generated and the input JTextField changed to be editable. 12.15 (Displaying Events) It's often useful to display the events that occur during the execution of an application. This can help you understand when the events occur and how they're generated. Write an application that enables the user to generate and process every event discussed in this chap- ter. The application should provide methods from the ActionListener, ItemListener, ListSelec- tionListener, MouseListener, MouseMotionListener and KeyListener interfaces to display messages when the events occur. Use method toString to convert the event objects received in each event handler into Strings that can be displayed. Method toString creates a String containing all the information in the event object.
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