Oracle Java SE 7 Programmer I - 1Z1-803 FREE EXAM DUMPS QUESTIONS & ANSWERS]

Question 1

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. false, false B. true, false C. true, true D. false, true

Discussion 0

Correct Answer: D Vote an answer

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Question 2

A method is declared to take three arguments. A program calls this method and passes only two arguments. What is the result?

A. Compilation fails. B. The third argument is given the value zero. C. The third argument is given the value null. D. The third argument is given the value void. E. An exception occurs when the method attempts to access the third argument. F. The third argument is given the appropriate false value for its declared type.

Discussion 0

Correct Answer: A Vote an answer

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Question 3

View the exhibit:
public class Student {
public String name = "";
public int age = 0;
public String major = "Undeclared";
public boolean fulltime = true;
public void display() {
System.out.println("Name: " + name + " Major: " + major); }
public boolean isFullTime() {
return fulltime;
}
}
Given:
Public class TestStudent {
public static void main(String[] args) {
Student bob = new Student ();
bob.name = "Bob";
bob.age = 18;
bob.year = 1982;
}
}
What is the result?

A. bob.year is set to 1982 B. A compile time error is generated. C. year is set to 1982. D. A runtime error is generated.

Discussion 0

Correct Answer: B Vote an answer

Question 4

public class Two {
public static void main(String[] args) {
try {
doStuff();
system.out.println("1");
}
catch {
system.out.println("2");
}}
public static void do Stuff() {
if (Math.random() > 0.5) throw new RunTimeException(); doMoreStuff();
System.out.println("3 ");
}
public static void doMoreStuff() {
System.out.println("4");
}
}
Which two are possible outputs?

A. 4 3 1 B. 2 C. 1 D. 1 2

Discussion 0

Correct Answer: A,B Vote an answer

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Question 5

A method is declared to take three arguments. A program calls this method and passes only two arguments. What is the results?

A. Compilation fails. B. The third argument is given the value zero. C. The third argument is given the value null. D. The third argument is given the value void. E. The third argument is given the appropriate falsy value for its declared type. F) An exception occurs when the method attempts to access the third argument.

Discussion 0

Correct Answer: A Vote an answer

Question 6

Given: What is the result?

A. sc: class.SampleClass asc: class.AnotherSampleClass B. sc: class.AnotherSampleClass asc: class.SampleClass C. sc: class.Object asc: class.AnotherSampleClass D. sc: class.AnotherSampleClass asc: class.AnotherSampleClass

Discussion 0

Correct Answer: D Vote an answer

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Question 7

Given:
class Base {
public static void main(String[] args) {
System.out.println("Base " + args[2]);
}
}
public class Sub extends Base{
public static void main(String[] args) {
System.out.println("Overriden " + args[1]);
}
}
And the commands:
javac Sub.java
java Sub 10 20 30
What is the result?

A. Overridden 20 B. Overridden 20 Base 30 C. Base 30 D. Base 30 Overridden 20

Discussion 0

Correct Answer: A Vote an answer

Question 8

Given the code fragment: What is the result?

A. Found Teal B. Found Default C. Found Red Found Blue Found Teal D. Found Red Found Default E. Found Red Found Blue Found Teal Found Default

Discussion 0

Correct Answer: B Vote an answer

Question 9

Given:

Which approach ensures that the class can be compiled and run?

A. Put the throw new Exception() statement in the try block of try - catch B. Put the doSomething() method in the try block of a try - catch C. Put the doSomethingElse() method in the try block of a try - catch D. Put the doSomething() method and the doSomethingElse() method in the try block of a try - catch

Discussion 0

Correct Answer: A Vote an answer

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Question 10

int i, j=0; i = (3* 2 +4 +5 ) ; j = (3 * ((2+4) + 5)); System.out.println("i:"+ i + "\nj":+j);
What is the result?

A. Option B B. Option A C. Option C D. Option D

Discussion 0

Correct Answer: A Vote an answer

Question 11

Given:
public class DoBreak1 {
public static void main(String[] args) {
String[] table = {"aa", "bb", "cc", "dd"};
for (String ss: table) {
if ( "bb".equals(ss)) {
continue;
}
System.out.println(ss);
if ( "cc".equals(ss)) {
break;
}
}
} }
What is the result?

A. Compilation fails. B. aa cc C. cc dd D. aa bb cc E. cc

Discussion 0

Correct Answer: B Vote an answer

Question 12

Identify two benefits of using ArrayList over array in software development.

A. reduces memory footprint B. dynamically resizes based on the number of elements in the list C. is multi.thread safe D. implements the Collection API

Discussion 0

Correct Answer: A,B Vote an answer

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Question 13

Given the fragments:

Which line causes a compilation error?

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

Discussion 0

Correct Answer: D Vote an answer

Question 14

Given the code fragment:
// insert code here arr[0] = new int[3]; arr[0][0] = 1; arr[0][1] = 2; arr[0][2] = 3;
arr[1] = new int[4]; arr[1][0] = 10; arr[1][1] = 20; arr[1][2] = 30; arr[1][3] = 40;
Which two statements, when inserted independently at line // insert code here, enable the code to compile?

A. int [] [] arr = new int [] [4]; B. int [] [] arr = null; C. int [] [] arr = new int [2]; D. int [] [] arr = new int [2] [0]; E. int [] [] arr = new int [0] [4]; F. int [] [] arr = new int [2] [ ];

Discussion 0

Correct Answer: D,F Vote an answer

Question 15

Given: Which two actions, used independently, will permit this class to compile?

A. Adding throws IOException to the dosomething() method signature and changing the catch argument to IOException B. Adding throws IOException to the main() method signature and changing the catch argument to IOException C. Adding throws IOException to the doSoomething() method signature D. Adding throws IOException to the main() method signature E. Adding throws IOException to the main() method signature and to the dosomething() method

Discussion 0

Correct Answer: A,E Vote an answer