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CompositeName startsWith() method in Java with Examples

  • Last Updated : 27 Mar, 2020
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The startsWith() method of a javax.naming.CompositeName class is used to check whether composite name which is passed as a parameter is a prefix of this composite name or not. A composite name ‘X’ is a prefix of this composite name if this composite name object ends with ‘X’. If X is null or not a composite name object, false is returned.

Syntax:

public boolean startsWith(Name n)

Parameters: This method accepts Name object n which is the possibly null composite name to check.

Return value: This method returns true if n is a CompositeName and is a prefix of this composite name, false otherwise.

Below programs illustrate the CompositeName.startsWith() method:
Program 1:






// Java program to demonstrate
// CompositeName.startsWith()
  
import java.util.Properties;
import javax.naming.CompositeName;
import javax.naming.InvalidNameException;
  
public class GFG {
    public static void main(String[] args)
        throws InvalidNameException
    {
  
        // create composite name object
        CompositeName CompositeName1
            = new CompositeName("1:2:4:6");
        CompositeName CompositeName2
            = new CompositeName("2:4:6");
  
        // apply startsWith()
        boolean Flag
            = CompositeName1
                  .startsWith(CompositeName2);
  
        // print value
        if (Flag)
            System.out.println(
                "CompositeName1 starts with "
                + " CompositeName2");
        else
            System.out.println(
                "CompositeName1 not starts with "
                + " CompositeName2");
    }
}
Output:
CompositeName1 not starts with  CompositeName2

Program 2:




// Java program to demonstrate
// CompositeName.startsWith() method
  
import java.util.Properties;
import javax.naming.CompositeName;
import javax.naming.InvalidNameException;
  
public class GFG {
    public static void main(String[] args)
        throws InvalidNameException
    {
  
        // create composite name object
        CompositeName CompositeName1
            = new CompositeName(
                "ca/eaaa/daaa/vaaa/a/b/z/y/x/f");
        CompositeName CompositeName2
            = new CompositeName(
                "ca/eaaa/daaa");
  
        // apply startsWith()
        boolean Flag
            = CompositeName1
                  .startsWith(CompositeName2);
  
        // print value
        if (Flag)
            System.out.println(
                "CompositeName1 starts with "
                + " CompositeName2");
        else
            System.out.println(
                "CompositeName1 not starts with "
                + " CompositeName2");
    }
}
Output:
CompositeName1 starts with  CompositeName2

References: https://docs.oracle.com/javase/10/docs/api/javax/naming/CompositeName.html#startsWith(javax.naming.Name)

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