Detailed introduction about compareTo

1. Construction method: Character ch1 = new Character('A'); Create a Character object with a char variable as a parameter; 2. Commonly used methods: The Character class provides many methods to complete the operation of characters: ①charValue(): Return value type: char; Function description: Return the value of the Character object. ②compareTo(Character anotherCharacter): Return value type: int Function description: Compare two Character objects, if equal, return 0, if the calling object is less than anotherCharacter object, return a negative value, otherwise return a positive value ③equals(Character anotherCharacter): Return value type: boolean Function description: Compare two Character objects, return true if they are equal, otherwise return false. ④toUpperCase(char ch): Convert character parameters to uppercase (requirements must

1. Instance analysis of the packaging class Character

Introduction: 1. Construction method: Character ch1 = new Character('A'); Create a Character object with a char variable as a parameter; 2. Commonly used methods: Character The class provides many methods to complete operations on characters: ①charValue(): Return value type: char; Function description: Return the value of the Character object. ②compareTo(Character anotherCharacter)

##2. Detailed explanation of the principle of the return value of compareToIgnoreCase

##Introduction: This article introduces the return value of compareToIgnoreCase Question

3.

In-depth understanding of the differences between compareTo and comparetoIgnorecase

Introduction: compareTo: comparison compareToIgnoreCase: comparison, ignoring case If the parameter string is equal to this string, return a value of 0; if this string is less than the string parameter in lexicographic order, return A value less than 0; if this string is greater than the string parameter in lexicographic order, a value greater than 0 is returned.

4.

Java classic string comparison method. : compareToIgnoreCase()

Introduction: compareToIgnoreCase() method is used to compare two strings in lexicographic order , regardless of case. Syntax int compareToIgnoreCase(String str) Parameters str -- The string to be compared

##5.

compareToIgnoreCase() compares two characters without regard to case. String

Introduction: The compareToIgnoreCase method compares two strings in lexicographic order, regardless of case. This method returns an integer.

#6. Detailed introduction to compareToIgnoreCase() method

##Introduction: Java String.compareToIgnoreCase() method usage example tutorial, compare two strings, dictionaries, ignore case differences

7. About sharing methods of String type in C

Introduction: Equals(string value) returns a BOOL type, compares whether they are equal, similar to == Compareto (string value) to determine the size, large returns 1, small returns -1, equal returns 0 IndexOf (string value) Find this character in the current string, start from the first one, find It returns the index where it was found for the first time. If it cannot be found, it returns -1. For example: 1123. If it finds 1, it returns 0

8. Java Example - String Comparison

Introduction: The following In the example, we use the string functions compareTo (string), compareToIgnoreCase(String) and compareTo(object string) to compare two strings and return the ASCII difference of the first letter in the string.

9. Java Example - File Path Comparison

##Introduction: The following example demonstrates using the filename.compareTo (another filename) method of the File class to compare whether two file paths are in the same directory:

10. hbase RowFilter

Introduction: RowFilter is used to filter row key Operator Description LESS Less than LESS_OR_EQUAL Less than or equal to EQUAL Equal to NOT_EQUAL Not equal to GREATER_OR_EQUAL Greater than or equal to GREATER Greater than NO_OP Exclude all Comparators Description BinaryComparator Use Bytes.compareTo() compares BinaryPrefix

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