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Java SE 8 Programmer II

Last Update 9 hours ago Total Questions : 208

The Java SE 8 Programmer II content is now fully updated, with all current exam questions added 9 hours ago. Deciding to include 1z0-809 practice exam questions in your study plan goes far beyond basic test preparation.

You'll find that our 1z0-809 exam questions frequently feature detailed scenarios and practical problem-solving exercises that directly mirror industry challenges. Engaging with these 1z0-809 sample sets allows you to effectively manage your time and pace yourself, giving you the ability to finish any Java SE 8 Programmer II practice test comfortably within the allotted time.

Question # 41

Given records from the Player table:

and given the code fragment:

try {

Connection conn = DriverManager.getConnection(URL, username, password);

Statement st= conn.createStatement(

ResultSet.TYPE_SCROLL_SENSITIVE,

ResultSet.CONCUR_UPDATABLE);

st.execute (“SELECT * FROM Player”);

st.setMaxRows(2);

ResultSet rs = st.getResultSet();

rs.absolute(3);

while (rs.next ()) {

System.out.println(rs.getInt(1) + “ “ + rs.getString(2));

}

} catch (SQLException ex) {

System.out.print(“SQLException is thrown.”);

}

Assume that:

The required database driver is configured in the classpath.

The appropriate database is accessible with URL, username, and password.

The SQL query is valid.

What is the result?

A.

2 Jack3 Sam

B.

The program prints nothing.

C.

3 Sam

D.

SQLException is thrown.

Question # 42

Given the Greetings.properties file, containing:

and given:

What is the result?

A.

Compilation fails.

B.

GOODBY_MSG

C.

Hello, everyone!

D.

Goodbye everyone!

E.

HELLO_MSG

Question # 43

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(res));

What is the result?

A.

A compilation error occurs.

B.

Java EEJava ME

C.

[Java EE: Helen:Houston][Java ME: Jessy:Chicago, Java ME: Mark:Chicago]

D.

[Java ME: Jessy:Chicago, Java ME: Mark:Chicago][Java EE: Helen:Houston]

Question # 44

Given:

public class Counter {

public static void main (String[ ] args) {

int a = 10;

int b = -1;

assert (b > =1) : “Invalid Denominator”;

int с = a / b;

System.out.println (c);

}

}

What is the result of running the code with the –da option?

A.

-10

B.

0

C.

An AssertionError is thrown.

D.

A compilation error occurs.

Question # 45

Given:

What is the result?

A.

Hi Interface-2

B.

A compilation error occurs.

C.

Hi Interface-1

D.

Hi MyClass

Question # 46

Given the code fragment:

Assume that dbURL, userName, and password are valid.

Which code fragment can be inserted at line n1 to enable the code to print Connection Established?

A.

Properties prop = new Properties();prop.put (“user”, userName);prop.put (“password”, password);con = DriverManager.getConnection (dbURL, prop);

B.

con = DriverManager.getConnection (userName, password, dbURL);

C.

Properties prop = new Properties();prop.put (“userid”, userName);prop.put (“password”, password);prop.put(“url”, dbURL);con = DriverManager.getConnection (prop);

D.

con = DriverManager.getConnection (dbURL);con.setClientInfo (“user”, userName);con.setClientInfo (“password”, password);

Question # 47

Given:

and the code fragment:

What is the result?

A.

truetrue

B.

falsetrue

C.

falsefalse

D.

truefalse

Question # 48

Given the code fragments:

class MyThread implements Runnable {

private static AtomicInteger count = new AtomicInteger (0);

public void run () {

int x = count.incrementAndGet();

System.out.print (x+” “);

}

}

and

Thread thread1 = new Thread(new MyThread());

Thread thread2 = new Thread(new MyThread());

Thread thread3 = new Thread(new MyThread());

Thread [] ta = {thread1, thread2, thread3};

for (int x= 0; x < 3; x++) {

ta[x].start();

}

Which statement is true?

A.

The program prints 1 2 3 and the order is unpredictable.

B.

The program prints 1 2 3.

C.

The program prints 1 1 1.

D.

A compilation error occurs.

Question # 49

Given the code fragment:

Which two code fragments, when inserted at line n1 independently, result in the output PEEK: Unix?

A.

.anyMatch ();

B.

.allMatch ();

C.

.findAny ();

D.

.noneMatch ();

E.

.findFirst ();

Question # 50

Given the code fragment:

List < Integer > values = Arrays.asList (1, 2, 3);

values.stream ()

.map(n - > n*2)//line n1

.peek(System.out::print)//line n2

.count();

What is the result?

A.

246

B.

The code produces no output.

C.

A compilation error occurs at line n1.

D.

A compilation error occurs at line n2.

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