Java 中的 Package isCompatibleWith()方法，示例
原文:https://www . geesforgeks . org/package-is compatiblewith-method-in-Java-with-examples/
java.lang.Package 类 的 isCompatibleWith() 方法用于检查该包的规范版本是否与指定版本兼容。方法以布尔值的形式返回结果。 语法:
public boolean isCompatibleWith(String desiredVersion)
参数:该方法接受一个参数 desiredVersion ，该参数是要检查兼容性的版本。 返回值:该方法将结果作为布尔值返回。 以下程序演示了 isCompatibleWith()方法。 例 1:
Java 语言(一种计算机语言，尤用于创建网站)
// 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
例 2:
Java 语言(一种计算机语言，尤用于创建网站)
// 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
参考:T2【https://docs . Oracle . com/javase/9/docs/API/Java/lang/package . html # is compatiblewith-Java . lang . string-T4】
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