Java String compareTo()方法用于按字典顺序比较两个字符串。两个字符串的每个字符都转换为 Unicode 值以进行比较。如果两个字符串都相等,则此方法返回 0,否则返回正值或负值。如果第一个字符串按字典顺序大于第二个字符串,则结果为正,否则结果为负。Java String compareTo()方法我们有以下两种
Stringname; Student(intno,String name) { this.no= no; = name; } publicString toString() { return"no="+no+","+"name="+name; } publicint compareTo(Object o) { Student t = (Student)o; if(no<) return 1; elseif(no==) return 0; else return -1; } } class Test { publicstat...
String s3 = s.toLowerCase(); //字符串拼接 String s5 = s.concat("GH"); } } 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 常用方法示例1 public class StringMethod { public static void main(String[] args) { String s = "abcdef"; /...
StringmyStr1="Hello";StringmyStr2="Hello";System.out.println(myStr1.compareTo(myStr2));// Returns 0 because they are equal Try it Yourself » Definition and Usage ThecompareTo()method compares two strings lexicographically. The comparison is based on the Unicode value of each character in...
private String bookName; private int bookPrice; @Override public int compareTo(Book o) { // TODO Auto-generated method stub //return this.bookPrice-o.bookPrice;//按价格排序 升序 //return o.bookPrice-this.bookPrice;//按价格排序 降序 ...
String.CompareTo(String) Method Reference Feedback Definition Namespace: Java.Lang Assembly: Mono.Android.dll Compares two strings lexicographically. [Android.Runtime.Register("compareTo", "(Ljava/lang/String;)I", "")] public int CompareTo(string anotherString); Parameters anotherString String...
String str1 ="Learn Java"; String str2 ="Learn Kolin";intresult;// comparing str1 with str2 result = str1.compareTo(str2); System.out.println(result); } }// Output: -1 Syntax of compareTo() The syntax of thecompareTo()method is: ...
privateint bookId;privateString bookName;privateint bookPrice;@OverridepublicintcompareTo(Book o){// TODO Auto-generated method stub//return this.bookPrice-o.bookPrice;//按价格排序 升序//return o.bookPrice-this.bookPrice;//按价格排序 降序//return this.bookName.compareTo(o.bookName);//按书...
Java String compareTo() Method: The compareTo() method compares two strings lexicographically. The comparison is based on the Unicode value of each character in the strings.
Arrays.sort(str,newComparator<String>() { @Overridepublicintcompare(String o1, String o2) {//TODO Auto-generated method stubreturno1.compareTo(o2); } }); compareTo()方法返回值为 int 类型,比较两个值,如:o1.compareTo(o2)。返回1,0,-1同 compare() 方法的参数比较一样。