Crowdly

for(int i = a.length-1; i >= 0; i-=2) {

Trace the following code, what is the output?

int a[] = new int[10];

a[i] += i ;

System.out.println(a[i]);

Explain the purpose of the following method:

public static boolean check(int[] iNumbers){

boolean bValid = true;

for (int i = 0; i < iNumbers.length - 1; i++) {

if (iNumbers[i] >= iNumbers[i + 1]) {

The algorithm sorts the value in increasing order

The algorithm checks if the values in the array are in increasing order

The algorithm sorts the value in decreasing order

There is a syntax error

for ( int j = 5; j<=10; j++)
System.out.println(i + " , " + j);

Trace the following code, what is the output?

int a[] = new int[10];

for(int i = 0; i < a.length; i++) {

a[i] = i * i;

System.out.println(a[i]);

}

100

100

How many iterations will be performed in total when executing the following java-code:

for(int i=0;i<5;i++)

i++; System.out.println(i);

What will happen when you attempt to compile and run the following code in a method?

for(int i=0;i<5;)

{

}

The program will print numbers from 1 to 5

The program will return a compilation error

The program will return a runtime error

The program will print numbers from 0 to 4

Match the repetitions and numbers of their iterations:

int counter = 10; do counter++; while(false);

while (true) System.out.println("Hello World!");

int x = 13, y = 0; while(x>y) { x--; y++; }

int i = 5; while(i>=0) --i;

for (int j = 5; j > 0; j--) System.out.println("j = " + j);

Variables declared inside the repetition block are accessible from the rest of the program.

True

False

What will be printed on the output after the execution of Java-code below:

Personal data:

Personal data: Name - John Smith

Personal data: Name - John Smith, Address - Road 2002, Block 123

No output

Choose a description from the ones listed below that best describes the following flowchart:

Read age value from user and store in age variable. Display "too old" message if age value was larger than 32. Otherwise, display "too young" message if age value was less than 16. Otherwise, display "eligible" message.

Read age value from user and store in age variable. Display "eligible" message if age is between 16 and 32. Otherwise, display "too young" message if age value was less than 16. Otherwise, display "too old" message if age value was larger than 32.

Read age value from user and store in age variable. Display "too young" message if age value was less than 16. Otherwise, display "too old" message if age value was larger than 32. Otherwise, display "eligible" message.