Given the code fragment:
Assume that:
The required database driver is configured in the classpath.
The appropriate database is accessible with the dbURL, userName, and passWord exists
The Employee table has a column ID of type integer and the SQL query matches one record.
What is the result?
Which two are elements of a singleton class? (Choose two.)
Given the content:
Given the code fragment:
Which two code fragments when inserted at Line 1, independently, enables the code fragment to print "Hallo'?
A.
B.
C.
D.
E.
Given the code fragment:
public static void main (String [ ] args) throws IOException {
BufferedReader br = new BufferedReader (new InputStremReader (System.in));
System.out.print (''Enter GDP: '');
//line 1
}
Which code fragment, when inserted at line 1, enables the code to read the GDP from the user?
Given:
and the code fragment:
Which two code fragments, when inserted at line n1 independently, enable the code to print TruckCarBike?
Given the code fragment:
Path file = Paths.get (''courses.txt'');
// line n1
Assume the courses.txt is accessible.
Which code fragment can be inserted at line n1 to enable the code to print the content of the courses.txt file?
Which statement is true about the single abstract method of the java.util.function.Predicate interface?
Given the code fragment:
Which code fragment, when inserted at line n1, ensures false is printed?
Given the code fragment:
public class Foo {
public static void main (String [ ] args) {
Map
unsortMap.put (10, ''z'');
unsortMap.put (5, ''b'');
unsortMap.put (1, ''d'');
unsortMap.put (7, ''e'');
unsortMap.put (50, ''j'');
Map
Comparator
@Override public int compare (Integer o1, Integer o2) {return o2.compareTo
(o1); } } );
treeMap.putAll (unsortMap);
for (Map.Entry
System.out.print (entry.getValue () + '' '');
}
}
}
What is the result?
Given the code fragment:
List
List
//line n1
Which code fragment, when inserted at line n1, prints 10 20 15 30?
Given the code fragment:
class CallerThread implements Callable
String str;
public CallerThread(String s) {this.str=s;}
public String call() throws Exception {
return str.concat(''Call'');
}
}
and
public static void main (String[] args) throws InterruptedException, ExecutionException
{
ExecutorService es = Executors.newFixedThreadPool(4); //line n1
Future f1 = es.submit (newCallerThread(''Call''));
String str = f1.get().toString();
System.out.println(str);
}
Which statement is true?
Given:
public class Customer {
private String fName;
private String lName;
private static int count;
public customer (String first, String last) {fName = first, lName = last;
++count;}
static { count = 0; }
public static int getCount() {return count; }
}
public class App {
public static void main (String [] args) {
Customer c1 = new Customer(''Larry'', ''Smith'');
Customer c2 = new Customer(''Pedro'', ''Gonzales'');
Customer c3 = new Customer(''Penny'', ''Jones'');
Customer c4 = new Customer(''Lars'', ''Svenson'');
c4 = null;
c3 = c2;
System.out.println (Customer.getCount());
}
}
What is the result?
Given the code fragment:
Stream
files.forEach (fName -> {//line n1
try {
Path aPath = fName.toAbsolutePath();//line n2
System.out.println(fName + '':''
+ Files.readAttributes(aPath, Basic.File.Attributes.class).creationTime
());
} catch (IOException ex) {
ex.printStackTrace();
});
What is the result?
Given the code fragment:
String str = ''Java is a programming language'';
ToIntFunction
int x = indexVal.applyAsInt(''Java'');//line n2
System.out.println(x);
What is the result?
Which class definition compiles?
