Oracle Java SE 7 Programmer I - 1Z1-803 Exam Practice Test
Which declaration initializes a boolean variable?
Correct Answer: D
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Which three are valid types for switch?
Correct Answer: C,D,F
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Given the code fragment:
What values of x, y, z will produce the following result?
1 2 3 4
1 2 3 4
1 2 3 4
1 2 3 4
What values of x, y, z will produce the following result?
1 2 3 4
1 2 3 4
1 2 3 4
1 2 3 4
Correct Answer: D
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Given:
public class Test1 {
static void doubling (Integer ref, int pv) {
ref =20;
pv = 20;
}
public static void main(String[] args) {
Integer iObj = new Integer(10);
int iVar = 10;
doubling(iObj++, iVar++);
System.out.println(iObj+ ", "+iVar);
What is the result?
public class Test1 {
static void doubling (Integer ref, int pv) {
ref =20;
pv = 20;
}
public static void main(String[] args) {
Integer iObj = new Integer(10);
int iVar = 10;
doubling(iObj++, iVar++);
System.out.println(iObj+ ", "+iVar);
What is the result?
Correct Answer: A
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Given: What should statement1, statement2, and statement3, be respectively, in order to produce the result?
Shape: constructor Square: foo Shape: foo
Shape: constructor Square: foo Shape: foo
Correct Answer: C
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Given:
Which code fragment, when inserted at line 9, enables the code to print true?
Which code fragment, when inserted at line 9, enables the code to print true?
Correct Answer: A
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A method doSomething () that has no exception handling code is modified to trail a method that throws a checked exception. Which two modifications, made independently, will allow the program to compile?
Correct Answer: B,D
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Given: Given:
public class SuperTest {
public static void main(String[] args) { statement1 statement2 statement3
}
}
class Shape {
public Shape() {
System.out.println("Shape: constructor");
}
public void foo() {
System.out.println("Shape: foo");
}
}
class Square extends Shape {
public Square() {
super();
}
public Square(String label) {
System.out.println("Square: constructor");
}
public void foo() {
super.foo();
}
public void foo(String label) {
System.out.println("Square: foo");
}
}
}
}
What should statement1, statement2, and statement3, be respectively, in order to produce the result?
Shape: constructor
Square: foo
Shape: foo
public class SuperTest {
public static void main(String[] args) { statement1 statement2 statement3
}
}
class Shape {
public Shape() {
System.out.println("Shape: constructor");
}
public void foo() {
System.out.println("Shape: foo");
}
}
class Square extends Shape {
public Square() {
super();
}
public Square(String label) {
System.out.println("Square: constructor");
}
public void foo() {
super.foo();
}
public void foo(String label) {
System.out.println("Square: foo");
}
}
}
}
What should statement1, statement2, and statement3, be respectively, in order to produce the result?
Shape: constructor
Square: foo
Shape: foo
Correct Answer: B
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Given the following code fragment:
What is the result if the integer value is 33?
What is the result if the integer value is 33?
Correct Answer: A
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Given the code fragment:
StringBuilder sb = new StringBuilder ( ) ; Sb.append ("world");
Which code fragment prints Hello World?
StringBuilder sb = new StringBuilder ( ) ; Sb.append ("world");
Which code fragment prints Hello World?
Correct Answer: C
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