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Oracle 1z0-809 certification exam is designed to test a candidate's proficiency in Java SE 8 programming language. It is an advanced level certification exam for Java professionals who want to demonstrate their expertise in Java development. To Pass 1z0-809 Exam, a candidate needs to have a strong understanding of Java code structure, flow control, and lambda expressions. Oracle Java SE 8 Programmer II Sample Questions (Q92-Q97):NEW QUESTION # 92
Given:
class Book {
int id;
String name;
public Book (int id, String name) {
this.id = id;
this.name = name;
}
public boolean equals (Object obj) { //line n1
boolean output = false;
Book b = (Book) obj;
if (this.name.equals(b name))}
output = true;
}
return output;
}
}
and the code fragment:
Book b1 = new Book (101, "Java Programing");
Book b2 = new Book (102, "Java Programing");
System.out.println (b1.equals(b2)); //line n2
Which statement is true?
A. The program prints false.
B. The program prints true.
C. A compilation error occurs. To ensure successful compilation, replace line n2 with: System.out.println (b1.equals((Object) b2));
D. A compilation error occurs. To ensure successful compilation, replace line n1 with: boolean equals (Book obj) {
Answer: D
NEW QUESTION # 93
Given the records from the Employee table:
and given the code fragment:
try {
Connection conn = DriverManager.getConnection (URL, userName, passWord);
Statement st = conn.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE,
ResultSet.CONCUR_UPDATABLE);
st.execute("SELECT*FROM Employee");
ResultSet rs = st.getResultSet();
while (rs.next()) {
if (rs.getInt(1) ==112) {
rs.updateString(2, "Jack");
}
}
rs.absolute(2);
System.out.println(rs.getInt(1) + " " + rs.getString(2));
} catch (SQLException ex) {
System.out.println("Exception is raised");
}
Assume that:
The required database driver is configured in the classpath.
The appropriate database accessible with the URL, userName, and passWord exists.
What is the result?
A. The Employee table is updated with the row:112 Jackand the program prints:112 Jack
B. The Employee table is not updated and the program prints:112 Jerry
C. The Employee table is updated with the row:112 Jackand the program prints:112 Jerry
D. The program prints Exception is raised.
Answer: B
NEW QUESTION # 94
Given the code fragments:
and
What is the result?
A. A compilation error occurs.
B. Video played.Game played.
C. class java.io.IOException
D. class java.lang.Exception
Answer: D
NEW QUESTION # 95
Given:
public class Emp {
String fName;
String lName;
public Emp (String fn, String ln) {
fName = fn;
lName = ln;
}
public String getfName() { return fName; }
public String getlName() { return lName; }
}
and the code fragment:
List<Emp> emp = Arrays.asList (
new Emp ("John", "Smith"),
new Emp ("eter", "Sam"),
new Emp ("Thomas", "Wale"));
emp.stream()
//line n1
.collect(Collectors.toList());
Which code fragment, when inserted at line n1, sorts the employees list in descending order of fName and then ascending order of lName?
A. .sorted (Comparator.comparing(Emp::getfName).thenComparing(Emp::getlName))
B. .map(Emp::getfName).sorted(Comparator.reserveOrder().map(Emp::getlName).reserved
C. .sorted (Comparator.comparing(Emp::getfName).reserved().thenComparing(Emp::getlName))
D. .map(Emp::getfName).sorted(Comparator.reserveOrder())
Answer: C
NEW QUESTION # 96
What is the result?
A. A compilation error occurs at line 7.
B. A compilation error occurs at line 8.
C. 0
D. A compilation error occurs at line 15.
Answer: A
NEW QUESTION # 97
......
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