Online Access Free 1Z1-803 Practice Test

View the Exhibit.
public class Hat {
public int ID =0;
public String name = "hat";
public String size = "One Size Fit All";
public String color="";
public String getName() { return name; }
public void setName(String name) {
this.name = name;
}
}
Given
public class TestHat {
public static void main(String[] args) {
Hat blackCowboyHat = new Hat();
}
}
Which statement sets the name of the Hat instance?

• A.setName("Cowboy Hat");
• B.blackCowboyHat.setName("Cowboy Hat");
• C.Hat.setName("Cowboy Hat");
• D.blackCowboyHat.setName = "Cowboy Hat";

Given the code format:

Which code fragment must be inserted at line 6 to enable the code to compile?

• A.Return DBConfiguration;
• B.Retutn 0;
• C.Return new DBConfiguration;
• D.DBConfiguration f; return f;

Given the code fragment:

What is the result?

• A.An IllegalArgumentException is thrown at run time
• B.Not valid
• C.Compilation fails
• D.Valid

Given:
public class Equal {
public static void main(String[] args) {
String str1 = "Java";
String[] str2 = {"J","a","v","a"};
String str3 = "";
for (String str : str2) {
str3 = str3+str;
}
boolean b1 = (str1 == str3);
boolean b2 = (str1.equals(str3));
System.out.print(b1+", "+b2);
} What is the result?

• A.true, false
• B.false, true
• C.false, false
• D.true, true

Which three statements are benefits of encapsulation?

• A.Enables the class implementation to protect its invariants
• B.Prevents code from causing exceptions
• C.Enables multiple instances of the same class to be created safely
• D.Protects confidential data from leaking out of the objects
• E.Permits classes to be combined into the same package
• F.Allows a class implementation to change without changing t he clients