Collator setDecomposition() method in Java with Example

Last Updated : 03 Jan, 2020

The setdecomposition() method of java.text.Collator class is used to set the decomposition mode of this collator.

Syntax:

public void setDecomposition(int decompositionMode)

Parameter: This method takes the integer value as a parameter which represents the equivalent decomposition mode for this collator.

Return Value: This method has nothing to return.

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

Example 1:

// Java program to demonstrate 
// setDecomposition() method 
  
import java.text.*; 
import java.util.*; 
import java.io.*; 
  
public class GFG { 
    public static void main(String[] argv) 
    { 
        try { 
  
            // Creating and initalizing new simple rule 
            String simple = "< a < b < c < d"; 
  
            // Creating and initializing 
            // new RuleBasedCollator Object 
            RuleBasedCollator col 
                = new RuleBasedCollator(simple); 
  
            // setting decomposition mode 
            // into the Collator object 
            // using setDecomposition() mehtod 
            col.setDecomposition( 
                Collator.CANONICAL_DECOMPOSITION); 
  
            // getting decompostiton mode 
            int mode = col.getDecomposition(); 
  
            // display result 
            if (mode == 0) 
                System.out.println( 
                    "decompostiton mode"
                    + " is :- NO_DECOMPOSITION"); 
            else if (mode == 1) 
                System.out.println( 
                    "decompostiton mode is"
                    + " :- CANONICAL_DECOMPOSITION"); 
            else
                System.out.println( 
                    "decompostiton mode is "
                    + ":- FULL_DECOMPOSITION. "); 
        } 
  
        catch (ClassCastException e) { 
  
            System.out.println("Exception thrown : " + e); 
        } 
        catch (ParseException e) { 
  
            System.out.println("Exception thrown : " + e); 
        } 
    } 
} 

Output:

decompostiton mode is :- CANONICAL_DECOMPOSITION

Example 2:

// Java program to demonstrate 
// setDecomposition() 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 decomposition mode 
            // into the Collator object 
            // using setDecomposition() mehtod 
            col.setDecomposition(Collator.FULL_DECOMPOSITION); 
  
            // getting decompostiton mode 
            int mode = col.getDecomposition(); 
  
            // display result 
            if (mode == 0) 
                System.out.println( 
                    "decompostiton mode"
                    + " is :- NO_DECOMPOSITION"); 
            else if (mode == 1) 
                System.out.println( 
                    "decompostiton mode is"
                    + " :- CANONICAL_DECOMPOSITION"); 
            else
                System.out.println( 
                    "decompostiton mode is "
                    + ":- FULL_DECOMPOSITION. "); 
        } 
  
        catch (ClassCastException e) { 
  
            System.out.println("Exception thrown : " + e); 
        } 
    } 
} 

Output:

decompostiton mode is :- FULL_DECOMPOSITION.

Reference: https://docs.oracle.com/javase/9/docs/api/java/text/Collator.html#setDecomposition-int-

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