Online Access Free 1Z1-803 Practice Test

Given:
class Base {
// insert code here
}
public class Derived extends Base{
public static void main(String[] args) {
Derived obj = new Derived();
obj.setNum(3);
System.out.println("Square = " + obj.getNum() * obj.getNum());
}
}
Which two options, when inserted independently inside class Base, ensure that the class is being properly encapsulated and allow the program to execute and print the square of the number?

• A.private int num;public int getNum() {return num;} private void setNum(int num) { this.num = num;}
• B.protected int num; private int getNum() { return num; } public void setNum(int num) { this.num = num;}
• C.private int num; public int getNum() { return num; }public void setNum(int num) { this.num = num;}
• D.protected int num; public int getNum() { return num; } public void setNum(int num) { this.num = num;}
• E.public int num; protected public int getNum() { return num; }protected public void setNum(int num) { this.num = num;}

Given the fragments:

Which line causes a compilation error?

• A.Line n2
• B.Line n3
• C.Line n1
• D.Line n4

Given:

What is the result?

• A.7 8 9
• B.Compilation fails
• C.6 7 8
• D.0 1 2
• E.6 8 10

Given the code fragment:
public static void main(String[] args) { int iArray[] = {65, 68, 69}; iArray[2] = iArray[0]; iArray[0] = iArray[1]; iArray[1] = iArray[2]; for (int element : iArray) { System.out.print(element + " "); }

• A.68, 65, 69
• B.Compilation fails
• C.65, 68, 65
• D.65, 68, 69
• E.68, 65, 65

Given:
package p1;
public class Test {
static double dvalue;
static Test ref;
public static void main(String[] args) {
System.out.println(ref);
System.out.println(dvalue);
}
}
What is the result?

• A.p1.Test.class
  0.0
• B.<the summary address refrenced by ref> 0.000000
• C.Compilation fails
• D.A NullPointerException is thrown at runtime
• E.Null
  0.0