Java formatted IO: the precision modifier.


import java.util.Formatter;

public class MainClass {
  public static void main(String args[]) {
    Formatter fmt = new Formatter();

    // Format 4 decimal places.
    fmt.format("%.4f", 123.1234567);
    System.out.println(fmt);

    // Format to 2 decimal places in a 16 character field.
    fmt = new Formatter();
    fmt.format("%16.2e", 123.1234567);
    System.out.println(fmt);

    // Display at most 15 characters in a string.
    fmt = new Formatter();
    fmt.format("%.15s", "Formatting with Java is now easy.");
    System.out.println(fmt);
  }
}

1.	Formatted Input output: A very simple example that uses Formatter.
2.	Demonstrate the format specifier.
3.	Formatting time and date.
4.	Demonstrate the format specifiers 2.
5.	Demonstrate a field-width specifier.
6.	Java Formatter: Create a table of squares and cubes.
7.	Java formatted IO: the left justification.
8.	Java formatted IO: the space format specifiers.
9.	Use arguments indexes to simplify the creation of a custom time and date format.
10.	Java formatted IO: Demonstrate printf().
11.	Java formatted IO: Use Scanner to compute an average of the values.
12.	Java formatted IO: Use Scanner to compute an average of the values in a file.
13.	Use Scanner to read various types of data from a file.
14.	Use Scanner to compute an average a list of comma-separated values.
15.	Java formatted IO: findInLine().
16.	Java new formatted IO : format tester

Java formatted IO: the precision modifier. : Formatted IO « Language Basics « Java

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