Java中的 Collator getStrength() 方法与示例

Java.text.Collator 类的getStrength()方法用于获取 Collator 对象的强度属性，这将在比较期间帮助该对象。

句法：

public int getStrength()

参数：此方法不接受任何参数。
返回值：此方法返回 Collator 对象的强度属性，这将在比较期间帮助该对象。

以下是说明getStrength()方法的示例：

示例 1：

Java

// Java program to demonstrate
// getStrength() method
 
import java.text.*;
import java.util.*;
import java.io.*;
 
public class GFG {
    public static void main(String[] argv)
    {
        try {
 
            // Creating and initializing
            // new simple rule
            String simple
                = "< a < b < c < d";
 
            // Creating and initializing
            // new RuleBasedCollator Object
            RuleBasedCollator col
                = new RuleBasedCollator(simple);
 
            // setting strength property
            // for the Collator object
            col.setStrength(Collator.IDENTICAL);
 
            // getting strength property
            // using getStrength() method
            int strength = col.getStrength();
 
            // display result
            if (strength == 0)
                System.out.println(
                    "current strength "
                    + "property :- PRIMARY.");
            else if (strength == 1)
                System.out.println(
                    "current strength "
                    + "property :- SECONDARY.");
            else if (strength == 2)
                System.out.println(
                    "current strength"
                    + " property :-  TERTIARY.");
            else
                System.out.println(
                    "current strength "
                    + "property :- IDENTICAL.");
        }
 
        catch (ClassCastException e) {
 
            System.out.println("Exception thrown : " + e);
        }
        catch (ParseException e) {
 
            System.out.println("Exception thrown : " + e);
        }
    }
}

输出：

current strength property :- IDENTICAL.

示例 2：

Java

// Java program to demonstrate
// getStrength() method
 
import java.text.*;
import java.util.*;
import java.io.*;
 
public class GFG {
    public static void main(String[] argv)
    {
        try {
 
            // Creating and initializing Collator Object
            Collator col = Collator.getInstance(Locale.UK);
 
            // getting strength property
            // using getStrength() method
            int strength = col.getStrength();
 
            // display result
            if (strength == 0)
                System.out.println(
                    "current strength "
                    + "property :- PRIMARY.");
            else if (strength == 1)
                System.out.println(
                    "current strength "
                    + "property :- SECONDARY.");
            else if (strength == 2)
                System.out.println(
                    "current strength "
                    + "property :-  TERTIARY.");
            else
                System.out.println(
                    "current strength "
                    + "property :- IDENTICAL.");
        }
 
        catch (ClassCastException e) {
 
            System.out.println("Exception thrown : " + e);
        }
    }
}

输出：

current strength property :-  TERTIARY.

参考： https://docs.oracle.com/javase/9/docs/api/ Java/text/Collator.html#getStrength–