Java 中将 Map 转换为 Stream 的程序
首先，创建一个Map并设置值-
Map<Integer, String> map = new HashMap<>(); map.put(1, "Kevin"); map.put(2, "Ryan"); map.put(3, "Nathan"); map.put(4, "Ricky"); map.put(5, "Shane"); map.put(6, "Adam");
现在，将Map转换为Stream-
Stream<Map.Entry<Integer, String> > stream = map.entrySet().stream();
System.out.println("Stream (Map to Stream) = "+ Arrays.toString(stream.toArray()));示例
以下是使用Java将Map转换为Stream的程序-
import java.util.*;
import java.util.stream.*;
public class Demo {
public static void main(String args[]) {
Map<Integer, String> map = new HashMap<>();
map.put(1, "Kevin");
map.put(2, "Ryan");
map.put(3, "Nathan");
map.put(4, "Ricky");
map.put(5, "Shane");
map.put(6, "Adam");
System.out.println("Map = " + map);
Stream<Map.Entry<Integer, String> > stream = map.entrySet().stream();
System.out.println("Stream (Map to Stream) = "+ Arrays.toString(stream.toArray()));
}
}输出结果
Map = {1=Kevin, 2=Ryan, 3=Nathan, 4=Ricky, 5=Shane, 6=Adam}
Stream (Map to Stream) = [1=Kevin, 2=Ryan, 3=Nathan, 4=Ricky, 5=Shane, 6=Adam]