Chapter 1 Summary of commonly used string methods in Java

1.1　charAt method - extract the specified character

1.2 codePointAt method - extract the index character code point

1.3 codePointBefore method - get the code point of the character before the index

1.4 codePointCount method - get the specified range of text Code points

1.5 CompareTo method - compare two strings

1.6 compareToIgnoreCase method - compare strings ignoring case

1.7 concat method - connect the end of string

1.8 contains method - judge Whether it contains the specified character

1.9 | copyValueOf method - generate a string from a character array

1.10 | endsWith method - determine the suffix string

1.11 | equals method - determine if the string is equal

1.12 | equalsIgnoreCase method - ignore Case determination of string equality

1.13 format method - format string

1.14 getBytes method - get the byte array of the string

1.15 getChars method - get the character array

1.16 hashCode method ——Generate a string hash table

1.17; indexOf method - get the first index of the character

　
1.18 intern method - get the normalized string

1.19 isEmpty method - determine whether the string is empty

1.20 LastIndexOf method - Get the last index of the character

1.21 Length method - Get the string length

1.22 Matches method - Match regular expressions

1.23 offsetByCodePoints method - Specify the code after getting the index offset Index of point

1.24 RegionMatches method - test whether two string regions are equal

1.25 replace method - replace character sequence

1.26 replaceAll method - replace all strings with regular expression matching

1.27 replaceFirst method - replace the first matching string with a regular expression

1.28 split method - split the string into an array

1.29 startsWith method - determine the prefix string

1.30 subSequence method - get the sub String sequence

1.31 | substring method - get substring

1.32 | toCharArray method - convert string into character array

1.33 | toLowerCase method - convert to lowercase string

1.34 | toUpperCase method - convert Into an uppercase string

1.35 Trim method - intercept blank spaces

1.36 ValueOf method - convert basic data types into strings

The above is a summary of the commonly used string methods in Java. For more related content, please pay attention to PHP Chinese website (www.php.cn)!