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RuleBasedCollator getRules() method in Java with Example

  • Last Updated : 09 Jul, 2021

The getRules() method of java.text.RuleBasedCollator class is used to get the rule which is used during the initialization of rule based collator object.

Syntax: 

public String getRules()

Parameter: This method does not accept any argument as parameter.
Return Value: This method returns the rule which is used during the initialization of rule based collator object.

Below are the examples to illustrate the getRules() method:

Example 1:  



Java




// Java program to demonstrate
// getRules() 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 < c & a < b";
 
            // Creating and initializing
            // new RuleBasedCollator Object
            RuleBasedCollator col
                = new RuleBasedCollator(simple);
 
            // getting rule of this object
            // using getRules() mehtod
            String rule = col.getRules();
 
            // display result
            System.out.println("rule is :- "
                               + rule);
        }
 
        catch (ClassCastException e) {
 
            System.out.println("Exception thrown : "
                               + e);
        }
        catch (ParseException e) {
 
            System.out.println("Exception thrown : "
                               + e);
        }
    }
}
Output: 
rule is :- < a < c & a < b

 

Example 2: 

Java




// Java program to demonstrate
// getRules() 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);
 
            // getting rule of this object
            // using getRules() mehtod
            String rule = col.getRules();
 
            // display result
            System.out.println("rule is :- "
                               + rule);
        }
 
        catch (ClassCastException e) {
 
            System.out.println("Exception thrown : "
                               + e);
        }
        catch (ParseException e) {
 
            System.out.println("Exception thrown : "
                               + e);
        }
    }
}
Output: 
rule is :- < a < b < c < d

 

Reference: https://docs.oracle.com/javase/9/docs/api/java/text/RuleBasedCollator.html#getRules–
 

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