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ZoneOffsetTransition isOverlap() method in Java with Example

  • Last Updated : 29 May, 2020

The isOverlap() method of java.time.zone.ZoneOffsetTransition class is used to check if there is an overlapping in between the transition or not.

Syntax:

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public boolean isOverlap()

Parameter: this method does not accept any parameter.

Return Value: This method returns true if there is an overlapping in between the transition or not.



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

Example 1:




// Java program to demonstrate
// isOverlap() method
  
import java.util.*;
import java.io.*;
import java.time.*;
import java.time.chrono.*;
import java.time.zone.*;
  
public class GFG {
    public static void main(String[] argv)
    {
  
        // creating and initializing
        // the object of LocalDateTime
        LocalDateTime loc
            = LocalDateTime.of(
                1999, 04, 25,
                03, 24, 59, 0);
  
        // creating and initializing
        // the object of ZoneOffset
        ZoneOffset off1
            = ZoneOffset.ofHoursMinutes(0, 8);
  
        // creating and initializing
        // the object of ZoneOffset
        ZoneOffset off2
            = ZoneOffset.ofTotalSeconds(9);
  
        // creating and initializing
        // ZoneOffsetTransition Object
        ZoneOffsetTransition zonetrans1
            = ZoneOffsetTransition.of(
                loc, off1, off2);
  
        // comparing both object using
        // equals() method
        boolean status = zonetrans1.isOverlap();
  
        // display the result
        if (status)
            System.out.println(
                "there is an overlapping");
        else
            System.out.println(
                "no overlapping found");
    }
}
Output:
there is an overlapping

Example 2:




// Java program to demonstrate
// isOverlap() method
  
import java.util.*;
import java.io.*;
import java.time.*;
import java.time.chrono.*;
import java.time.zone.*;
  
public class GFG {
    public static void main(String[] argv)
    {
  
        // creating and initializing
        // the object of LocalDateTime
        LocalDateTime loc
            = LocalDateTime.of(
                1999, 04, 25,
                03, 24, 59, 0);
  
        // creating and initializing
        // the object of ZoneOffset
        ZoneOffset off1
            = ZoneOffset.ofTotalSeconds(8);
  
        // creating and initializing
        // the object of ZoneOffset
        ZoneOffset off2
            = ZoneOffset.ofTotalSeconds(12);
  
        // creating and initializing
        // ZoneOffsetTransition Object
        ZoneOffsetTransition zonetrans1
            = ZoneOffsetTransition.of(
                loc, off1, off2);
  
        // comparing both object using
        // equals() method
        boolean status = zonetrans1.isOverlap();
  
        // display the result
        if (status)
            System.out.println(
                "there is an overlapping");
        else
            System.out.println(
                "no overlapping found");
    }
}
Output:
no overlapping found

Reference: https://docs.oracle.com/javase/9/docs/api/java/time/zone/ZoneOffsetTransition.html#isOverlap–




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