JavaString.compareTo()compares two strings lexicographically (in dictionary order) in a case-sensitive manner. For case-insensitive comparison, usecompareToIgnoreCase()method. 1. Strings in Lexicographic Order If a string'string1'comes before another string'string2'in the dictionary, thenstring2is s...
compareTo()方法 String类实现了Comparable接口,所以我们可以直接使用compareTo()方法来比较字符串的字典序。 Stringstr1="apple";Stringstr2="banana";intresult=str1.compareTo(str2);if(result<0){System.out.println(str1+" 在字典序中排在 "+str2+" 之前");}elseif(result>0){System.out.println(str...
static Comparator<String>CASE_INSENSITIVE_ORDER A Comparator that orders String objects as by compareToIgnoreCase. Constructor Summary Constructors ConstructorDescription String() Initializes a newly created String object so that it represents an empty character sequence. String(byte[] bytes) Constructs...
import java.util.Comparator; import java.util.List; public class CompareDemoListSort { public static void main(String[] args) { List<Student> list = Student.getStudentList(); System.out.println("--- Sort Students by age ---"); Comparator<Student> ageComp = (s1, s2) -> s1.getAge(...
The result is zero if the strings are equal, compareTo returns 0 exactly when the equals(Object) method would return true.The compareTo() method accepts a parameter as a string, and it compares the strings lexicographically, the lexicographic compression means in the alphabetical order (a-z)....
Java String compareTo() method example. Learn to compare two strings lexicographically. We can consider this string comparison dictionary based comparison. Java String equalsIgnoreCase() Java String.equalsIgnoreCase() compares the current string with the specified string in a case-insensitive manner. Lear...
public static void main(String[] args) { String str = "BDCA"; System.out.println("The Given String is: " + str); int n = str.length(); // Get the length of the string. // Display the lexicographic rank of the given string. System.out.print("The Lexicographic rank of the ...
//通过两层比较,1:排序(升序) ,2:字母顺序排序. 使用thenComparing()Collections.sort(list,Comparator.comparingInt(String::length).thenComparing(String.CASE_INSENSITIVE_ORDER)); thenComparing()方法源码如下 Copy /** * Returns a lexicographic-order comparator with another comparator. ...
2.2 compareTo方法 先看看Comparable接口,它的定义如下: publicinterfaceComparable<T> {intcompareTo(T o); } 用String举一个简单的例子: publicclassCompareTest{publicstaticvoidmain(String[] args){ String[] str =newString[]{"AA","EE","DD","CC","FF","BB"}; ...
public static short compare(boolean ignoreCase, byte[] aString, short offset, short length, byte[] anotherString, short ooffset, short olength) Compares two strings lexicographically, optionally ignoring case considerations. The comparison is based on the UTF-8-encoded Unicode value of each char...