Given the content of /resourses/Message.properties:
welcome1="Good day!"
and given the code fragment:
Properties prop = new Properties ();
FileInputStream fis = new FileInputStream ("/resources/Message.properties"); prop.load(fis); System.out.println(prop.getProperty("welcome1")); System.out.println(prop.getProperty("welcome2", "Test"));//line n1 System.out.println(prop.getProperty("welcome3")); What is the result?

• A.A compilation error occurs at line n1.
• B.Good day!
  followed by an Exception stack trace
• C.Good day!
  Test
  followed by an Exception stack trace
• D.Good day!
  Test
  null

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Which two reasons should you use interfaces instead of abstract classes?

• A.You want to declare non-static on non-final fields.
• B.You expect that classes that implement your interfaces have many common methods or fields, or require access modifiers other than public.
• C.You want to share code among several closely related classes.
• D.You expect that unrelated classes would implement your interfaces.
• E.You want to take advantage of multiple inheritance of type.

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Given the code fragments:
class TechName {
String techName;
TechName (String techName) {
this.techName=techName;
}
}
and
List<TechName> tech = Arrays.asList (
new TechName("Java-"),
new TechName("Oracle DB-"),
new TechName("J2EE-")
) ;
Stream<TechName> stre = tech.stream();
/ /line n1
Which should be inserted at line n1 to print Java-Oracle DB-J2EE-?

• A.stre.map(a-> a.techName).forEach(System.out::print);
• B.stre.forEachOrdered(System.out::print);
• C.stre.forEach(System.out::print);
• D.stre.map(a-> a).forEachOrdered(System.out::print);

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Given the code fragment:

Which two modifications should you make so that the code compiles successfully?

• A.Replace line 11 with public static void main (String [ ] args) throws Exception (
• B.At line 14, insert throw new IOException ( );
• C.Replace line 7 with throw IOException ("Exception raised");
• D.Replace line 5 with public void printFileContent ( ) throws IOException (
• E.Replace line 13 with:

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Given the code fragments:
class TechName {
String techName;
TechName (String techName) {
this.techName=techName;
}
}
and
List<TechName> tech = Arrays.asList (
new TechName("Java-"),
new TechName("Oracle DB-"),
new TechName("J2EE-")
);
Stream<TechName> stre = tech.stream();
//line n1
Which should be inserted at line n1 to print Java-Oracle DB-J2EE-?

• A.stre.forEach(System.out::print);
• B.stre.map(a-> a.techName).forEach(System.out::print);
• C.stre.forEachOrdered(System.out::print);
• D.stre.map(a-> a).forEachOrdered(System.out::print);

Comment: *

Name: *

Email: *

Verification: *