Util

java.lang.Object
- org.apache.tomcat.jakartaee.Util

public class Util
extends java.lang.Object

Utility methods.

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method	Description
`static void`	`copy(java.io.InputStream is, java.io.OutputStream os)`	Buffered copy.
`static java.lang.String`	`getExtension(java.lang.String filename)`	Get the extension of a filename
`static java.lang.String`	`toString(java.io.InputStream is, java.nio.charset.Charset charset)`	Convert the input bytes as a string.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Method Detail
  - getExtension
```
public static java.lang.String getExtension(java.lang.String filename)
```
    Get the extension of a filename
    The extension is the string after the last '.' in the filename.
    
    Parameters:
    
    filename - the name of the file
    
    Returns:
    
    the extension or an empty string, if no dot is found in the filename
  - copy
```
public static void copy(java.io.InputStream is,
                        java.io.OutputStream os)
                 throws java.io.IOException
```
    Buffered copy.
    
    Parameters:
    
    is - the input
    
    os - the output
    
    Throws:
    
    java.io.IOException - if an exception occurs
  - toString
```
public static java.lang.String toString(java.io.InputStream is,
                                        java.nio.charset.Charset charset)
                                 throws java.io.IOException
```
    Convert the input bytes as a string.
    
    Parameters:
    
    is - the input byte stream
    
    charset - the charset to use
    
    Returns:
    
    the converted string
    
    Throws:
    
    java.io.IOException - if an exception occurs