Someone has just finished creating a class and wants you to review it:
class DataServer extends Server{
public String serverName;
public DataServer () {
serverName = "Customer Service"; super(serverName);
}
}
What do you tell the programmer:
PEBO
Quiz
•
Other
•
University
•
Medium
Fabian Arasyid
Used 2+ times
FREE Resource
24 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Someone has just finished creating a class and wants you to review it:
class DataServer extends Server{
public String serverName;
public DataServer () {
serverName = "Customer Service"; super(serverName);
}
}
What do you tell the programmer:
The code will not compile because there is something wrong in the DataServer method
The code will compile but the error will occurred when the class is instantiated
The code will compile and run fin
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The following source file is given the name FirstClass.java
import java.*;
public class FirstClass { }
class SecondClass { }
public class ThirdClass { }
What error will the compiler will likely generate?
public class FirstClass could not be public
public class SecondClass must be defined in other file named "SecondClass.java" because there cannot be more than one class with a public modifier in the same file
class SecondClass must be public
package java not found in import
3.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Which of the following variable definitions are legitimate if it is an instance variable (not class variable)? (choose all that apply)
Public static int a;
private static final int a;
protected int a;
public int a = 1;
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Examine this code:
public class A {
public static void main(String[] args) {
Calculation c = new Calculation();
c.print1();
}
}
class Calculation {
private int number;
public void setNumber(int number) {
this.number = number;
}
public void print1() {
int sum = 0;
for (int i=0; i<this.number;i++){
if (i%2==0)
sum+=i;
}
System.out.println("Sum is"+sum);
}
}
what will be the output when the code is compiled and run?
The code will not compille
10
0
null
20
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
An object is an instantiation of a class. Pernyataan ini dapat diterjemahkan sebagai -sebuah obyek adalah sebuah perwujudan dari sebuah kelas.
true
false
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Examine this code:
public class A {
public static void main(String[] args) {
Calculation c = new Calculation();
c.setNumber(10);
c.print1();
}
}
class Calculation {
private int number;
public void setNumber(int number) {
this.number = number;
}
public void print1() {
int sum = 0;
for (int i=0; i<this.number;i++){
if (i%2==0)
break;
}
System.out.println("Sum is"+sum);
}
}
What will be the output when the code is compiled and run?
The code will not compile
0
20
null
10
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If you try to compile and run this class, what will happen?
public class LocalTest {
public static void main(String[] args) {
int i;
i = 20;
System.out.print("int i = " + (++i));
}
}
it will not compile and give the compile error
it will compile and output 21 to the screen
it will compile, but will produce interpreter error when executed
it will compile and output 20 to the screen
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