Online Access Free 1z1-819 Practice Test

Given:

Which two independent changes will make the Main class compile? (Choose two.)

• A.Change line 1 to static class Student {.
• B.Change line 2 to public Student(String classname).
• C.Move the entire Student class declaration to a separate Java file, Student.java.
• D.Change line 3 to Student student = new Student("Biology");.
• E.Change line 1 to public class Student {.

Given:

What is the result?

• A.234
• B.3241
• C.214
• D.2134

Given the content from the course.txt file:

Which code fragment at line 1 prints the lines that contain Java from the course.txt file?
A)

B)

C)

D)

E)

• A.Option E
• B.Option B
• C.Option D
• D.Option C
• E.Option A

Which set of commands is necessary to create and run a custom runtime image from Java source files?

• A.javac, jlink
• B.javac, jar
• C.java, jdeps
• D.jar, jlink

Which two safely validate inputs? (Choose two.)

• A.Use trusted domain-specific libraries to validate inputs.
• B.Accept only valid characters and input values.
• C.Assume inputs have already been validated.
• D.Delegate numeric range checking of values to the database.
• E.Modify the input values, as needed, to pass validation.