Java 中的 CompoundName hashCode()方法，带示例
原文:https://www . geesforgeks . org/compound name-hashcode-method-in-Java-with-examples/
一个 javax.naming.CompoundName 类的 hashCode() 方法用来返回这个复合名称的 hash 代码。这个复合名称对象的哈希代码是这个复合名称的单个组件的“规范化”形式的哈希代码的总和。
语法:
public int hashCode()
参数:此方法不接受任何内容。
返回值:这个方法返回一个表示这个名字的哈希码的 int。
下面的程序说明了 CompoundName.hashCode()方法: 程序 1:
// Java program to demonstrate
// CompoundName.hashCode()
import java.util.Properties;
import javax.naming.CompoundName;
import javax.naming.InvalidNameException;
public class GFG {
public static void main(String[] args)
throws InvalidNameException
{
// need properties for CompoundName
Properties props = new Properties();
props.put("jndi.syntax.separator", ":");
props.put("jndi.syntax.direction",
"left_to_right");
// create compound name object
CompoundName CompoundName1
= new CompoundName(
"a:b:z:y:x", props);
// apply hashCode()
int hashCode
= CompoundName1.hashCode();
// print value
System.out.println("hashCode:"
+ hashCode);
}
}
Output:
hashCode:558
程序 2:
// Java program to demonstrate
// CompoundName.hashCode() method
import java.util.Properties;
import javax.naming.CompoundName;
import javax.naming.InvalidNameException;
public class GFG {
public static void main(String[] args)
throws InvalidNameException
{
// need properties for CompoundName
Properties props = new Properties();
props.put("jndi.syntax.separator", "/");
props.put("jndi.syntax.direction",
"left_to_right");
// create compound name object
CompoundName CompoundName1
= new CompoundName(
"c/e/d/v/a/b/z/y/x/f",
props);
// apply hashCode()
int hashCode
= CompoundName1.hashCode();
// print value
System.out.println("hashCode:"
+ hashCode);
}
}
Output:
hashCode:1078
参考文献:https://docs . Oracle . com/javase/10/docs/API/javax/naming/compound name . html # hashCode()
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