Java EnumMap values()
Java EnumMap类的
values()方法用于创建此对象中包含的值的集合视图地图。
语法
public Collection<V> values()
参数
NA
返回
此方法返回映射值的集合视图。
异常
NA
示例1
import java.util.*;
public class EnumMapValuesExample1 {
// create an enum
public enum Tutorial {
Java, CSS, Python, Android, Javascript
};
public static void main(String[] args) {
EnumMap<Tutorial, String> map = new EnumMap<Tutorial, String>(Tutorial.class);
map.put(Tutorial.Java, "1");
map.put(Tutorial.CSS, "2");
map.put(Tutorial.Python, "3");
map.put(Tutorial.Android, "4");
System.out.println("Map: "+map);
Collection<String> values = map.values();
System.out.println("Collection: "+values);
}
}
输出:
Map: {Java=1, CSS=2, Python=3, Android=4}
Collection: [1, 2, 3, 4]
示例2
import java.util.*;
public class EnumMapValuesExample2 {
// create an enum
public enum Days {
Monday,Tuesday, Wednesday, Thursday
}
;
public static void main(String[] args) {
EnumMap<Days, String> map = new EnumMap<Days, String>(Days.class);
map.put(Days.Monday, "1");
map.put(Days.Tuesday, "2");
map.put(Days.Wednesday, "3");
System.out.println("Map: "+map);
Collection<String>values = map.values();
System.out.println("Collection: "+values);
}
}
输出:
Map: {Monday=1, Tuesday=2, Wednesday=3}
Collection: [1, 2, 3]
