Writing console output

Console Output in Java:

• Initially, Java only offered byte streams for console output; Starting with Java 1.1, character streams were added for greater portability.
• System.out is still widely used for simple console output, and all previous examples in the book have used it.

Print() and println() methods:

• These are methods of the PrintStream class (System.out object type) and facilitate data output to the console.
• System.out allows simple outputs despite being a stream of bytes.

PrintStream write(int valbyte) method:

• Allows you to write a specific byte to the console.
• Only the 8 least significant bits of valbyte are written.

Example of use:

class WriteDemo {
    public static void main(String args[]) {
        int b = 'X';
        System.out.write(b);
        System.out.write('\n');
    }
}

• Use: write() is less frequent, as print() and println() are more practical for general output.

PrintStream printf() and format() methods:

• Advanced Formatting Control: Allows you to control the output format, including decimal places, minimum field width and display of negative values.
• These methods, although useful, were not used in the examples in this book, but are recommended for those who want to explore detailed data formatting in Java.

This snippet explains how data output to the console is managed in Java and shows additional methods for controlling formatting, providing simple and advanced options for displaying data.

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