StringUtils (WSO2 Carbon - Utils 2.2.4 API)

java.lang.Object
- org.wso2.carbon.utils.StringUtils

```
public class StringUtils
extends Object
```
This class contains utility methods for Strings.

Since:

1.0.0

Constructor Summary

Constructors
Constructor Description

StringUtils()

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method	Description
`static Optional<String>`	`getNonEmptyStringAfterTrim(String str)`	Returns non-empty `Optional<String>`, if the given `String` is non-empty after applying trim() operation.
`static boolean`	`isNullOrEmpty(String str)`	Check whether the given `String` is null or empty.
`static boolean`	`isNullOrEmptyAfterTrim(String str)`	Check whether the given `String` is null of empty after the trim operation.

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

- Constructor Detail
  - StringUtils
```
public StringUtils()
```
- Method Detail
  - isNullOrEmpty
```
public static boolean isNullOrEmpty(String str)
```
    Check whether the given String is null or empty.
    
    Parameters:
    
    str - input string
    
    Returns:
    
    true if the given String is null or empty.
  - isNullOrEmptyAfterTrim
```
public static boolean isNullOrEmptyAfterTrim(String str)
```
    Check whether the given String is null of empty after the trim operation.
    
    Parameters:
    
    str - input string.
    
    Returns:
    
    'true' if the given String is null or empty after trim.
  - getNonEmptyStringAfterTrim
```
public static Optional<String> getNonEmptyStringAfterTrim(String str)
```
    Returns non-empty Optional<String>, if the given String is non-empty after applying trim() operation.
    
    Parameters:
    
    str - input String.
    
    Returns:
    
    Optional<String>, if the given String is non-empty after applying trim() operation. If not an empty Optional<String> will be returned.