What is the output of the following application? A. CatHat CatHat B. aCataHat HatCat C. The code
Question:
What is the output of the following application?
A. CatHat CatHat
B. aCataHat HatCat
C. The code does not compile because the stream in concat1() returns an Optional.
D. The code does not compile for a different reason.
E. An exception is printed at runtime.
F. None of the above.
Transcribed Image Text:
package exercise; import java.util.*; public class Concat { public String concat1 (List values) { values.parallelStream() .reduce ("a", return (x,y)->x+y, String::concat); } public String concat2 (List values) { return values.parallelStream() .reduce ((w, z)->z+w).get(); } public static void main(String... questions) { Concat c = new Concat(); var list = List.of("Cat", "Hat"); String x = c.concatl (list); String y = c.concat2 (list); System.out.print(x+""+y); }}
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The code provided defines a Java class Concat with two methods concat1 and concat2 that perform string concatenations on elements of a list of strings ...View the full answer
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OCP Oracle Certified Professional Java SE 11 Developer Practice Tests Exam 1Z0 819 And Upgrade Exam 1Z0 817
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