Exact2Pass
Last Update 8 hours ago Total Questions : 208
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For which three objects must a vendor provide implementations in its JDBC driver? (Choose three.)
Given:
class Sum extends RecursiveAction { //line n1
static final int THRESHOLD_SIZE = 3;
int stIndex, lstIndex;
int [ ] data;
public Sum (int [ ]data, int start, int end) {
this.data = data;
this stIndex = start;
this. lstIndex = end;
}
protected void compute ( ) {
int sum = 0;
if (lstIndex – stIndex < = THRESHOLD_SIZE) {
for (int i = stIndex; i < lstIndex; i++) {
sum += data [i];
}
System.out.println(sum);
} else {
new Sum (data, stIndex + THRESHOLD_SIZE, lstIndex).fork( );
new Sum (data, stIndex,
Math.min (lstIndex, stIndex + THRESHOLD_SIZE)
).compute ();
}
}
}
and the code fragment:
ForkJoinPool fjPool = new ForkJoinPool ( );
int data [ ] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}
fjPool.invoke (new Sum (data, 0, data.length));
and given that the sum of all integers from 1 to 10 is 55.
Which statement is true?
Given the structure of the EHF and DEPT tables:
Given the code fragment:
What is the result?
Given the code fragment:
Assume that the value of now is 6:30 in the morning.
What is the result?
Given the code fragment:
UnaryOperator < Integer > uo1 = s - > s*2;line n1
List < Double > loanValues = Arrays.asList(1000.0, 2000.0);
loanValues.stream()
.filter(lv - > lv > = 1500)
.map(lv - > uo1.apply(lv))
.forEach(s - > System.out.print(s + “ “));
What is the result?
Given the code fragment:
Which should be inserted into line n1 to print Average = 2.5?
Given:
class Student {
String course, name, city;
public Student (String name, String course, String city) {
this.course = course; this.name = name; this.city = city;
}
public String toString() {
return course + “:” + name + “:” + city;
}
public String getCourse() {return course;}
public String getName() {return name;}
public String getCity() {return city;}
and the code fragment:
List < Student > stds = Arrays.asList(
new Student (“Jessy”, “Java ME”, “Chicago”),
new Student (“Helen”, “Java EE”, “Houston”),
new Student (“Mark”, “Java ME”, “Chicago”));
stds.stream()
.collect(Collectors.groupingBy(Student::getCourse))
.forEach(src, res) - > System.out.println(scr));
What is the result?
Given:
and the code fragment:
What is the result?
Given:
final class Folder {//line n1
//line n2
public void open () {
System.out.print(“Open”);
}
}
public class Test {
public static void main (String [] args) throws Exception {
try (Folder f = new Folder()) {
f.open();
}
}
}
Which two modifications enable the code to print Open Close? (Choose two.)
Which two statements are true about the Fork/Join Framework? (Choose two.)
