public class StringHelper
extends java.lang.Object
Purpose: Define any useful String
constants and methods that are missing from the base Java.
Modifier and Type | Field and Description |
---|---|
static char |
CR
Carriage return
|
static char |
DOT
Dot.
|
static java.lang.String |
EMPTY_STRING
Empty
String . |
static char |
FF
Form feed
|
static char |
LEFT_BRACE
Left brace.
|
static char |
LEFT_BRACKET
Left bracket.
|
static char |
LF
Line feed.
|
static java.lang.String |
NULL_STRING
"null" String . |
static char |
QUESTION_MARK
Vertical bar.
|
static char |
RIGHT_BRACE
Right brace.
|
static char |
RIGHT_BRACKET
Right bracket.
|
static char |
SPACE
Space.
|
static char |
TAB
Horizontal tab.
|
static char |
VERTICAL_BAR
Vertical bar.
|
Constructor and Description |
---|
StringHelper() |
Modifier and Type | Method and Description |
---|---|
static java.lang.String |
nonNullString(java.lang.String str)
Never return null but replace it with
"null" String . |
public static final char TAB
public static final char LF
public static final char FF
public static final char CR
public static final char SPACE
public static final char LEFT_BRACE
public static final char RIGHT_BRACE
public static final char LEFT_BRACKET
public static final char RIGHT_BRACKET
public static final char DOT
public static final char VERTICAL_BAR
public static final char QUESTION_MARK
public static final java.lang.String EMPTY_STRING
String
.public static final java.lang.String NULL_STRING
"null"
String
.public static final java.lang.String nonNullString(java.lang.String str)
"null"
String
.str
- String to be checked for null and eventually replaced with
"null"
String
."null"
String
.EclipseLink 2.6.3, "build v20160428-59c81c5" API Reference