Files
2022-12-23 13:26:29 +00:00

20 lines
520 B
Java

// "Collapse loop with stream 'findFirst()'" "true-preview"
import java.util.List;
import java.util.Map;
import java.util.Objects;
public class Main {
private int getInitialSize() {return 0;}
public void testMap(Map<String, List<String>> map) throws Exception {
int firstSize = 10;
System.out.println(firstSize);
// loop
// comment
firstSize = map.values().stream().filter(Objects::nonNull).findFirst().map(List::size).orElse(getInitialSize());
System.out.println(firstSize);
}
}