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Package isCompatibleWith() method in Java with Examples
  • Last Updated : 03 Jan, 2020

The isCompatibleWith() method of java.lang.Package class is used to check if this package’s specification version is compatible with the specified version or not. The method returns the result as a boolean value.

Syntax:

public boolean isCompatibleWith(String desiredVersion)

Parameter: This method accepts a paramter desiredVersion which is the version to be checked for compatibility.

Return Value: This method returns the result as a boolean value.

Below programs demonstrate the isCompatibleWith() method.



Example 1:




// Java program to demonstrate
// isCompatibleWith() method
  
public class Test {
    public static void main(String[] args)
    {
  
        // returns the Package
        // object for this package
        Package myPackage
            = Package.getPackage("java.lang");
  
        System.out.println(
            "Package represented by myPackage: "
            + myPackage.toString());
  
        String desiredVersion = "1.5";
  
        // check if this package is compatible with or not
        // using isCompatibleWith() method
        System.out.println(
            "Is this package compatible with or not: "
            + myPackage.isCompatibleWith(desiredVersion));
    }
}
Output:
Package represented by myPackage: package java.lang, Java Platform API Specification, version 1.8
Is this package compatible with or not: true

Example 2:




// Java program to demonstrate
// isCompatibleWith() method
  
public class Test {
    public static void main(String[] args)
    {
  
        // returns the Package
        // object for this package
        Package myPackage
            = Package.getPackage("java.io");
  
        System.out.println(
            "Package represented by myPackage: "
            + myPackage.toString());
  
        String desiredVersion = "1.0";
  
        // check if this package is compatible with or not
        // using isCompatibleWith() method
        System.out.println(
            "Is this package compatible with or not: "
            + myPackage.isCompatibleWith(desiredVersion));
    }
}
Output:
Package represented by myPackage: package java.io, Java Platform API Specification, version 1.8
Is this package compatible with or not: true

Reference: https://docs.oracle.com/javase/9/docs/api/java/lang/Package.html#isCompatibleWith-java.lang.String-

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