StringUtils (Nimbus OAuth 2.0 SDK with OpenID Connect 1.0 extensions v9.43)

java.lang.Object
- com.nimbusds.oauth2.sdk.util.StringUtils

```
public final class StringUtils
extends Object
```
String utilities. Replicates Apache Commons Lang 3.

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method	Description
`static boolean`	`isAlpha(CharSequence cs)`	Returns `true` if the specified char sequence is all alphabetic letters.
`static boolean`	`isBlank(CharSequence cs)`	Returns `true` if the specified char sequence is all blank, empty or `null`.
`static boolean`	`isNotBlank(CharSequence cs)`	Returns `true` if the specified char sequence is not all blank, not empty and not `null`.
`static boolean`	`isNumeric(CharSequence cs)`	Returns `true` if the specified char sequence is all numeric letters.

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

- Method Detail
  - isBlank
```
public static boolean isBlank(CharSequence cs)
```
    Returns true if the specified char sequence is all blank, empty or null.
    
    Parameters:
    
    cs - The char sequence. May be null.
    
    Returns:
    
    true if the specified char sequence is all blank, empty or null, else false.
  - isNotBlank
```
public static boolean isNotBlank(CharSequence cs)
```
    Returns true if the specified char sequence is not all blank, not empty and not null.
    
    Parameters:
    
    cs - The char sequence. May be null.
    
    Returns:
    
    true if the specified char sequence is not all blank, not empty and not null, else false.
  - isAlpha
```
public static boolean isAlpha(CharSequence cs)
```
    Returns true if the specified char sequence is all alphabetic letters.
    
    Parameters:
    
    cs - The char sequence. May be null.
    
    Returns:
    
    true if the specified char sequence is all alphabetic letters, empty or null, else false.
  - isNumeric
```
public static boolean isNumeric(CharSequence cs)
```
    Returns true if the specified char sequence is all numeric letters.
    
    Parameters:
    
    cs - The char sequence. May be null.
    
    Returns:
    
    true if the specified char sequence is all numeric letters, empty or null, else false.