Método Collator setDecomposition() en Java con ejemplo

El método setdecomposition() de la clase java.text.Collator se utiliza para establecer el modo de descomposición de este recopilador.
Sintaxis: 
 

public void setDecomposition(int decompositionMode)

Parámetro : este método toma el valor entero como un parámetro que representa el modo de descomposición equivalente para este recopilador.
Valor devuelto: este método no tiene nada que devolver.
A continuación se muestran los ejemplos para ilustrar el método setDecomposition() :
Ejemplo 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 initializing 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() method
            col.setDecomposition(
                Collator.CANONICAL_DECOMPOSITION);
 
            // getting decomposition 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);
        }
    }
}

decompostiton mode is :- CANONICAL_DECOMPOSITION

Ejemplo 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 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() method
            col.setDecomposition(
                Collator.CANONICAL_DECOMPOSITION);
 
            // getting decomposition 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);
        }
    }
}

decompostiton mode is :- FULL_DECOMPOSITION. 

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