StringUtils (druid 1.2.26 API)

java.lang.Object
- com.alibaba.druid.util.StringUtils

```
public class StringUtils
extends Object
```
Author:

sandzhang[sandzhangtoo@gmail.com]

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method	Description
`static boolean`	`equals(String a, String b)`
`static boolean`	`equalsIgnoreCase(String a, String b)`
`static String`	`formatDateTime19(long millis, TimeZone timeZone)`
`static boolean`	`isEmpty(CharSequence value)`
`static boolean`	`isNumber(char[] chars)`
`static boolean`	`isNumber(String str)`
`static int`	`lowerHashCode(String text)`
`static String`	`removeNameQuotes(String s)`
`static String`	`replaceAll(String s, String src, String dest)`
`static Integer`	`stringToInteger(String in)`	Converts a string representation of an integer to an Integer object.
`static String`	`subString(String src, String start, String to)`	Example: subString("abcd","a","c")="b"
`static String`	`subString(String src, String start, String to, boolean toLast)`	Example: subString("abcdc","a","c",true)="bcd"
`static Integer`	`subStringToInteger(String src, String start, String to)`	Example: subString("12345","1","4")=23

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

Method Detail

subStringToInteger
```
public static Integer subStringToInteger(String src,
                                         String start,
                                         String to)
```
Example: subString("12345","1","4")=23

Parameters:

src - the source string from which to extract the substring

start - the starting point of the substring

to - the ending point of the substring

Returns:

the extracted substring converted to an Integer, or null if any of the input strings is null

subString
```
public static String subString(String src,
                               String start,
                               String to)
```
Example: subString("abcd","a","c")="b"

Parameters:

src - the source string from which to extract the substring

start - null while start from index=0

to - null while to index=src.length

Returns:

the extracted substring, or null if any of the input strings is null

subString
```
public static String subString(String src,
                               String start,
                               String to,
                               boolean toLast)
```
Example: subString("abcdc","a","c",true)="bcd"

Parameters:

src - the source string from which to extract the substring

start - null while start from index=0

to - null while to index=src.length

toLast - true while to index=src.lastIndexOf(to)

Returns:

the extracted substring, or null if any of the input strings is null, or if the start/end points are invalid

stringToInteger
```
public static Integer stringToInteger(String in)
```
Converts a string representation of an integer to an Integer object.

Parameters:

in - the input string to be converted (can be null)

Returns:

the Integer object parsed from the input string, or null if the input is null, empty, or not a valid integer

equals

public static boolean equals(String a,
                             String b)

equalsIgnoreCase

public static boolean equalsIgnoreCase(String a,
                                       String b)

isEmpty

public static boolean isEmpty(CharSequence value)

lowerHashCode

public static int lowerHashCode(String text)

isNumber

public static boolean isNumber(String str)

isNumber

public static boolean isNumber(char[] chars)

formatDateTime19

public static String formatDateTime19(long millis,
                                      TimeZone timeZone)

removeNameQuotes

public static String removeNameQuotes(String s)

replaceAll

public static String replaceAll(String s,
                                String src,
                                String dest)