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Choose the correct option based on this code segment in Java8 Innards
Question Posted on 01 Jan 2021
Home >> Java >> Java8 Innards >> Choose the correct option based on this code segment in Java8 Innards |
Choose the correct option based on this code segment in Java8 Innards
import java.util.Optional;
public class App {
public static void main(String[] args) {
String[] str = new String[10];
str[5] = null;;
str[4] = "JAVA OPTIONAL CLASS EXAMPLE";
Optional< String> checkNull = Optional.ofNullable(str[5]);
if(checkNull.isPresent()){ // It Checks, value is present or not
String lowercaseString = str[5].toLowerCase();
System.out.print(lowercaseString);
}else
System.out.println("String value is not present");
}
}
Choose the correct output.
(1)String value is not present
(2)Runtime error: Null pointer Exception
(3)Java optional example
(4)Compilation error
Answer:-(1)String value is not present | |
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