Format String and characters

In this chapter you will learn:

  1. How to format individual character and how to format string
  2. How to pass in two strings into the format string

Formatting Strings and Characters

To format an individual character, use %c. This causes the matching character argument to be output, unmodified.

To format a string, use %s.

format('%.15s', String str) (Display at most 15 characters in a string)

The following code use %s specifier and number to control the output width. It will only display at most 15 characters in a string.

import java.util.Formatter;
//from  j  a v a2s.  c o  m
public class MainClass {
  public static void main(String args[]) {
    Formatter fmt = new Formatter();

    fmt = new Formatter();
    fmt.format("%.15s", "Formatting with Java is now easy.");

The output:

Pass in two strings

public class Main {
  public static void main(String args[]) {
//from j  a  va 2 s  .c o  m
      String.format("Hi %s at %s", "", "your screen"));

The code above generates the following result.

Next chapter...

What you will learn in the next chapter:

  1. How to format integer value with Java Formatter
Home » Java Tutorial » String


    Java String type
    Java String Concatenation
    Java String Creation
    Java String Compare
    Java String Search
    Java String and char array
    Java String Conversion
    String trim, length, is empty, and substring
    String replace


    StringBuffer class
    StringBuffer Insert and Append
    StringBuffer length and capacity
    StringBuffer char operation
    StringBuffer Operations
    Search within StringBuffer
    StringBuffer to String


    StringBuilder insert and append
    StringBuilder length and capacity
    StringBuilder get,delete,set char
    StringBuilder delete, reverse
    StringBuilder search with indexOf and lastIndexOf
    StringBuilder to String

String Format

    Formatter class
    Format Specifier
    Format String and characters
    Format integer value
    Format decimal
    Scientific notation format
    Format octal and hexadecimal value
    Format date and time value
    Escape Formatter
    Minimum Field Width
    Specifying Precision
    Format Flags
    Uppercase Option
    Formatter Argument Index
    Align left and right
    Left and right padding a string

String Format Utilities

    Abbreviate string
    Caplitalize a string
    Uncapitalize a string
    Utility class for right padding
    Left padding
    Centers a String
    Transforms words