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Exam Code: 1Z0-803Exam Name: Java SE 7 Programmer I
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1Z0-803 Exam PDF Total Q&A: 216 Questions and Answers
Last Update: 07-04,2015
1Z0-803 Questions and answers Detail: 1Z0-803 Exam PDF
Exam Code: 1z0-808Exam Name: Java SE 8 Programmer I
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1z0-808 Real Dumps Total Q&A: 77 Questions and Answers
Last Update: 07-04,2015
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Exam Code: 1Z0-051Exam Name: Oracle Database: SQL Fundamentals I
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1Z0-051 Study Guide Total Q&A: 292 Questions and Answers
Last Update: 07-04,2015
1Z0-051 Exam Questions Detail: 1Z0-051 Study Guide
NO.1 Given the for loop construct:
for ( expr1 ; expr2 ; expr3 ) {
statement;
}
Which two statements are true?
A. The expression expr3 must be present. It is evaluated after each iteration through the loop.
B. When expr2 evaluates to false, the loop terminates. It is evaluated only after each iteration
through the loop.
C. The expression expr1 is optional. it initializes the loop and is evaluated once, as the loop begin.
D. This is not the only valid for loop construct; there exits another form of for loop constructor.
Answer: B,C
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Explanation:
The for statement have this forms:
for (init-stmt; condition; next-stmt) {
body
}
There are three clauses in the for statement.
The init-stmt statement is done before the loop is started, usually to initialize an iteration
variable.
The condition expression is tested before each time the loop is done. The loop isn't
executed if the boolean expression is false (the same as the while loop).
The next-stmt statement is done after the body is executed. It typically increments an
iteration variable.
NO.2 Given: Which is true?
A. Sum for 0 to 0 = 55
B. Compilation fails due to error on line 7.
C. An Exception is thrown at the runtime.
D. Compilation fails due to error on line 6.
E. Sum for 0 to 10 = 55
Answer: B
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Explanation:
Loop variables scope limited to that enclosing loop. So in this case, the scope of the loop
variable x declared at line 5, limited to that for loop. Trying to access that variable at line 7,
which is out of scope of the variable x, causes a compile time error. So compilation fails
due to error at line 7. Hence option D is correct.
Options A and B are incorrect, since code fails to compile.
Reference: httpsy/docs.oracle.com/javase/tutorial/java/nutsandbolts/variables.html
NO.3 Given the code fragment:
What is the result?
A. Compilation fails
B. A B C Work done
C. A B C D Work done
D. A Work done
Answer: D
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NO.4 Given:
public class TestLoop {
public static void main(String[] args) {
int array[] = {0, 1, 2, 3, 4};
int key = 3;
for (int pos = 0; pos < array.length; ++pos) {
if (array[pos] == key) {
break;
}
}
System.out.print("Found " + key + "at " + pos);
}
}
What is the result?
A. Found 3 at 2
B. Compilation fails
C. Found 3 at 3
D. An exception is thrown at runtime
Answer: B
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Explanation:
The following line does not compile: System.out.print("Found " + key + "at " + pos);
The variable pos is undefined at this line, as its scope is only valid in the for loop. Any variables
created inside of a loop are LOCAL TO THE LOOP.
NO.5 Given the code fragment:
What is the result?
A. 285 < 429 true
B. compilation fails
C. 28false29 true
D. true true
Answer: D
1z0-808 Test Questions
NO.6 Given: What is the result?
A. myStr: 7007, myNum: 7007
B. myStr: 7007, myNum: 9009
C. myStr: 9009, myNum: 9009
D. Compilation fails
Answer: B
NO.7 Given the code fragment:
What is the result if the integer aVar is 9?
A. Compilation fails.
B. 10 Hello universe!
C. 10 Hello world!
D. 9 Hello world!
Answer: C
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NO.8 Which two items can legally be contained within a java class declaration?
A. A package declaration
B. A method declaration
C. An import statement
D. A field declaration
Answer: B,D
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