// Java program to demonstrate size() importjava.util.*; // An enum of geeksforgeeks publicenumgfg{ India_today, United_States_today } ; classEnum_demo{ publicstaticvoidmain(String[]args) { EnumMap<gfg,Integer>mp=newEnumMap<gfg,Integer>(gfg.class); // Values are associated mp.put(gf...
intres=mp.get(gfg.India); // Prints the result System.out.println("GeeksforGeeks ranked in India: "+res); } } 输出: GeeksforGeeksrankedinIndia:72 方案二: // Java program to demonstrate get(key) importjava.util.*; // An enum of geeksforgeeks publicenumgfg{ India, United_States, C...
//展示keySet()的Java程序importjava.util.*;//Geeksforgeeks的枚举publicenumgfg{Global_today,India_today,China};classEnum_demo{publicstaticvoidmain(String[]args){EnumMap<gfg,Integer>mp=newEnumMap<gfg,Integer>(gfg.class);// 联系到值mp.put(gfg.Global_today,799);mp.put(gfg.India_today,69);/...
Copy 程序2: // Java program to demonstrate clone() methodimportjava.util.*;// An enum of gfg ranking is createdpublicenumgfg_ranking{Global_2018,India_2018};classEnum_map{publicstaticvoidmain(String[]args){EnumMap<gfg_ranking,Integer>mp1=newEnumMap<gfg_ranking,Integer>(gfg_ranking.class);...
Java 中的 EnumMap get()方法 原文:https://www.geeksforgeeks.org/enummap-get-method-in-java/ Java 中的 Java.util.EnumMap.get( 对象键)方法用于给出指定键的映射值。语法: get(*Object key*) 参数:该方法取一个参数键,传递该参数返回与之关联的值。返回值:返回关
// Java program to demonstrate the working of keySet()importjava.util.*;// an enum of geeksforgeeks// rank in India and United Statespublicenumgfg { India_today, United_States_today } ;classEnum_demo{publicstaticvoidmain(String[] args){ ...
// Java program to demonstrate the working of keySet()importjava.util.*;// an enum of geeksforgeeks// rank in India and United Statespublicenumgfg { India_today, United_States_today } ;classEnum_demo{publicstaticvoidmain(String[] args){ ...
Java 中的 EnumMap 克隆()方法 原文:https://www.geeksforgeeks.org/enummap-clone-method-in-java/ Java 中的 Java.util.EnumMap.clone()方法用于将一个映射的值复制到另一个映射。它基本上创建了这张地图的一个浅拷贝。语法: Enum_map_2 = Enum_map_1.clone() 参数:
importjava.util.*; // An enum of gfg ranking worldwide and in india publicenumgfg{ Global_2018, India_2018 }; classEnum_map{ publicstaticvoidmain(String[]args) { EnumMap<gfg,Integer>mp=newEnumMap<gfg,Integer>(gfg.class); // Values are associated in mp ...
Java Copy 参数:该方法有一个参数map。它是要复制到新地图中的地图。 返回值该方法不返回任何值。 下面的程序说明了putAll()方法: 程序1: // Java程序演示keySet()importjava.util.*;//枚举 geeksforgeekspublicenumgfg{Global_today,India_today,China_today};classEnum_demo{publicstaticvoidmain(String[]args...