Properties类的hashCode()方法用于为包含键和值的给定Properties生成hashCode。
用法:
public int hashCode()
参数:此方法没有参数。
返回值:此方法返回给定映射的hashCode值。
下面的程序显示int hashCode()方法的实现。
示例1:
// Java code to show the implementation of
// hashCode method
import java.util.*;
public class GfG {
// Main method
public static void main(String[] args)
{
// Create a properties and add some values
Properties properties = new Properties();
properties.put("Pen", 10);
properties.put("Book", 500);
properties.put("Clothes", 400);
properties.put("Mobile", 5000);
// Print Properties details
System.out.println("Properties: "
+ properties.toString());
// Getting the hashCode value
System.out.println("HashCode: "
+ properties.hashCode());
}
}
输出:
Properties: {Book=500, Mobile=5000, Pen=10, Clothes=400} HashCode: 548388082
示例2:
// Java program to demonstrate
// hashCode() method.
import java.util.*;
public class GFG {
// Main method
public static void main(String[] args)
{
// Create a properties and add some values
Properties properties = new Properties();
properties.put(1, "100RS");
properties.put(2, "500RS");
properties.put(3, "1000RS");
// Print Properties details
System.out.println("Current Properties: "
+ properties.toString());
// Getting the hashCode value
System.out.println("HashCode: "
+ properties.hashCode());
}
}
输出:
Current Properties: {3=1000RS, 2=500RS, 1=100RS} HashCode: 1545792714
参考:https://docs.oracle.com/javase/9/docs/api/java/util/Properties.html#hashCode–
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注:本文由纯净天空筛选整理自Kirti_Mangal大神的英文原创作品 Properties hashCode() method in Java with Examples。非经特殊声明,原始代码版权归原作者所有,本译文未经允许或授权,请勿转载或复制。