Java EnumMap get()方法

Java.util.EnumMap.get( Object key )方法是用来给出指定键的映射值的。

语法

get(Object key)

参数： 该方法需要一个参数key，通过它来返回与之相关的值。

返回值： 它返回与相关键映射的值。

下面的程序说明了get()函数的工作原理。

程序1:

// Java program to demonstrate get(key)
import java.util.*;
  
// An enum of geeksforgeeks
public enum gfg {
    Global,
    India
}
;
  
class Enum_demo {
    public static void main(String[] args)
    {
  
        EnumMap<gfg, Integer> mp = new 
                     EnumMap<gfg, Integer>(gfg.class);
  
        // Values are associated
        mp.put(gfg.Global, 800);
        mp.put(gfg.India, 72);
  
        // Stores the value mapped with the key specified
        int res = mp.get(gfg.India);
  
        // Prints the result
        System.out.println("GeeksforGeeks ranked in India: " 
                                                    + res);
    }
}

输出：

GeeksforGeeks ranked in India: 72

程序2

// Java program to demonstrate get(key)
import java.util.*;
  
// An enum of geeksforgeeks
public enum gfg {
    India,
    United_States,
    China
}
;
  
class Enum_demo {
    public static void main(String[] args)
    {
  
        EnumMap<gfg, String> mp = new 
                  EnumMap<gfg, String>(gfg.class);
  
        // Values are associated
        mp.put(gfg.India, "61.7%");
        mp.put(gfg.United_States, "18.2%");
        mp.put(gfg.China, "2.5%");
  
        // Stores the value mapped with the key specified
        String res = mp.get(gfg.United_States);
  
        // Prints the result
        System.out.println("Visitors in United_States: " 
                                                   + res);
    }
}

输出：