Java中的 Collator setStrength() 方法与示例

Java.text.Collator 类的setStrength()方法用于设置 Collator 对象的强度属性，这将在比较两个字符串时帮助该对象。
句法：

public void setStrength(int newStrength)

参数：此方法接受 Collator 对象的强度属性作为参数，这将在比较过程中帮助该对象。
返回值：此方法没有任何返回值。
以下是说明setStrength()方法的示例：
示例 1：

Java

// Java program to demonstrate
// setStrength() 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
            // using getStrength() method
            col.setStrength(Collator.IDENTICAL);
 
            // getting strength property
            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
// setStrength() 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);
 
            // setting strength property
            // for the Collator object
            // using getStrength() method
            col.setStrength(Collator.PRIMARY);
 
            // getting strength property
            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 :- PRIMARY.

参考： https://docs.oracle.com/javase/9/docs/api/ Java/text/Collator.html#setStrength-int-