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2021 Oct 1z0-808 exam cost
Q141. Given:
What is the result?
A. A B C D
B. A C D
C. A B C
D. A B D
E. A B D C
Answer: C
Q142. Given the code fragment:
Which option can replace xxx to enable the code to print 135?
A. int e = 0; e < = 4; e++
B. int e = 0; e < 5; e + = 2
C. int e = 1; e < = 5; e + = 1
D. int e = 1; e < 5; e+ =2
Answer: B
Q143. Given the fragment:
String[][] arra = new String[3][];
arra[0] = new String[]{"rose", "lily"};
arra[1] = new String[]{"apple", "berry","cherry","grapes"};
arra[0] = new String[]{"beans", "carrot","potato"};
// insert code fragment here
Which code fragment when inserted at line '// insert code fragment here', enables the code to successfully change arra elements to uppercase?
A. String[][] arra = new String[3][];
arra[0] = new String[]{"rose", "lily"};
arra[1] = new String[]{"apple", "berry","cherry","grapes"};
arra[0] = new String[]{"beans", "carrot","potato"};
for (int i = 0; i < arra.length; i++) {
for (int j=0; j < arra[i].length; j++) {
arra[i][j] = arra[i][j].toUpperCase();
}
}
B. for (int i = 0; i < 3; i++) {
for (int j=0; j < 4; j++) {
arra[i][j] = arra[i][j].toUpperCase();
}
}
C. for (String a[]:arra[][]) {
for (String x:a[]) {
D. toUpperCase();
}
}
E. for (int i:arra.length) {
for (String x:arra) {
arra[i].toUpperCase();
}
}
Answer: C
Explanation:
Incorrect:
not A: arra.length is 3, but the subarrays have 2, 3 and 4 elements. Index will be out of
bound.
not B: The subarrys are of different lengths. Index will be out of bound.
not D: Compile error.
Q144. 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. Null
0.0
D. Compilation fails
E. A NullPointerException is thrown at runtime
Answer: C
Q145. Given:
What is the result?
A. 10:20
B. 0:20
C. Compilation fails at line n1
D. Compilation fails at line n2
Answer: D
Up to date 1z0-808 practice exam:
Q146. Given:
What is the result?
A. Option A
B. Option B
C. Option C
D. Option D
Answer: D
Q147. Given:
What is the result?
A. int main 1
B. Object main 1
C. String main 1
D. Compilation fails
E. An exception is thrown at runtime
Answer: C
Q148. 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. Found 3 at 3
C. Compilation fails
D. An exception is thrown at runtime
Answer: C
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.
Q149. Which two are Java Exception classes?
A. SercurityException
B. DuplicatePathException
C. IllegalArgumentException
D. TooManyArgumentsException
Answer: A,C
Q150. Given the code fragment
int var1 = -5;
int var2 = var1--;
int var3 = 0;
if (var2 < 0) {
var3 = var2++;
} else {
var3 = --var2;
}
System.out.println(var3);
What is the result?
A. – 6
B. – 4
C. – 5
D. 5
E. 4
F. Compilation fails
Answer: C