1. WIKI教程
2. Java.lang包
3. int hashCode()

int hashCode()

描述 (Description)

java.lang.Character.Subset.hashCode()方法返回标准哈希码。

声明 (Declaration)

以下是java.lang.Character.Subset.hashCode()方法的声明

public final int hashCode()

参数 (Parameters)

NA

返回值 (Return Value)

此方法返回此对象的哈希码值。

异常 (Exception)

NA

例子 (Example)

以下示例显示了java.lang.Character.Subset.hashCode（）方法的用法。

package com.iowiki;
import java.lang.*;
public class CharacterSubsetDemo extends Character.Subset {
   // constructor of super class
   CharacterSubsetDemo(String s) {
      super(s); 
   }
   public static void main(String[] args) {
      CharacterSubsetDemo obj1 = new CharacterSubsetDemo("admin");
      CharacterSubsetDemo obj2 = new CharacterSubsetDemo("webmaster");
      CharacterSubsetDemo obj3 = new CharacterSubsetDemo("administrator");
      // returns a hash code value
      int retval = obj1.hashCode();
      System.out.println("Hash code of Object " + obj1 + " = " + retval);
      retval = obj2.hashCode();
      System.out.println("Hash code of Object " + obj2 + " = " + retval);
      retval = obj3.hashCode();
      System.out.println("Hash code of Object " + obj3 + " = " + retval);
   }
} 

让我们编译并运行上面的程序，这将产生以下结果 -

Hash code of Object admin = 1704856573
Hash code of Object webmaster = 705927765
Hash code of Object administrator = 366712642