for loops & while loops

for loops & while loops

University - Professional Development

10 Qs

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for loops & while loops

for loops & while loops

Assessment

Quiz

Computers

University - Professional Development

Practice Problem

Hard

Used 4+ times

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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which is the correct?

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

{


}

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

{


}

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

for (int i = 0 i < COUNT i++)

{


}

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which will print "Hello Karel" 1000 times?

for (int i = 0; i < 100; i++)

{

System.out.println("Hello Karel");

}

for (int i = 0; i < 1000; i++)

{

System.out.println("Hello Karel");

}

for (int i = 0 i < 1000; i++)

System.out.println("Hello Karel");

}

for (int i = 0; i < 1000; i+)

{

System.out.println("Hello Karel");

}

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following will count down from 1 to 10 without error?

public class WhileLoop extends ConsoleProgram

{

public void run()

{

int i = 10;

while(i >= 0)

System.out.println(i);

i--;

}

}

public class WhileLoop extends ConsoleProgram

{

public void run()

{

int i = 10;

while(i >= 0)

{

System.out.print(i);

i--;

}

}

}

public class WhileLoop extends ConsoleProgram

{

public void run()

{

int i = 9;

while(i >= 0)

{

System.out.println(i);

i--;

}

}

}

public class WhileLoop extends ConsoleProgram

{

public void run()

{

int i = 10;

while(i >= 0)

{

System.out.println(i);

i--;

}

}

}

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Pick the for loop which duplicates this while loop:

int x = 0;

while ( x < 500 )

{

System.out.println( x );

x = x + 5;

}

for ( int x = 5; x <= 500; x+=5 )

System.out.println( x );

for ( int x = 0; x < 500; x+=5 )

System.out.println( x );

for ( float x = 0.0; x < 500.0; x += 5.0 )

System.out.println( x );

for ( int x = 500; x >= 0; x-=5 )

System.out.println( x );

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does the following print?

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

{

for ( int k = 0; k < 10 ; k++ )

System.out.print( "*" );


System.out.println( );

}

**********

**********

**********

**********

**********

**********

**********

**********

**********

**********

**********

**********

**********

**********

**********

*****

*****

*****

*****

*****

*****

*****

*****

*****

*****

*

*

*

*

*

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the output of the following code fragment?

for ( int count = 0; count <= 20; count+=2 )

System.out.print( count + " " );


System.out.println( );

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

0 2 4 6 8 10

0 2 4 6 8 10 12 14 16 18

0 2 4 6 8 10 12 14 16 18 20

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

var i = 0;

while (i < 3)

{

println("Hello There");

i++;

}


What does the code output?

Hello There

Hello There

Hello There

Hello There

Hello There

Hello There

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