Unit 4 Quiz 2 Review

Which general for loop definition is written correctly?

• for(true)

  {

  // code

  }

• if(i<5)

  {

  // code

  }

• for(int i = 0; i < count; i++)

  {

  // code

  }

• while(condition)

  {

  // code

  }

Why do we use for loops in Java?

• To break out of some block of code

• To do something if a condition is true

• 
  

  To do something while a condition is true

• 
  

  To repeat something for a fixed number of times

Why do we use while loops in Java?

• To break out of some block of code

• To do something if a condition is true

• To repeat some code while a condition is true

• To repeat something for a fixed number of times

Which general while loop definition is written correctly?

• while(x is true)

  {

  // code

  }

• if(i<5)

  {

  // code

  }

• while(int i = 0; i < count; i++)

  {

  // code

  }

• while(condition)

  {

  // code

  }

What is NOT a reason a programmer should indent their code?

• 
  

  Helps show the structure of the code

• 
  

  Easier for other people to understand

• 
  

  Indenting is a key part of good programming style

• Helps shorten the code

To maintain good style, where should brackets go in Java programming?

• 
  

  Before defining the run method

• 
  

  Always on their own line

• 
  

  Right after defining a method

• 
  

  Two brackets per line

Why do we use if statements in Java?

• 
  

  To break out of some block of code

• 
  

  To do something only if a condition is true

• To do something while a condition is true

• To repeat something for a fixed number of times

Which general if statement definition is written correctly?

• for(condition)

  {

  // code

  }

• if(condition)

  {

  // code

  }

• if(int i = 0; i < count; i++)

  {

  // code

  }

• if(false)

  {

  // code

  }

What does an if/else statement look like in Java?

• if(condition)

  {

  // code

  }

  if(condition)

  {

  //code

  }

• if(condition)

  {

  // code

  }

• for(int i = 0; i < count; i++)

  {

  // code

  }

• if(condition)

  {

  // code

  }

  else

  {

  //code

  }

Why do we use if/else statements in Java?

• 
  

  To repeat something for a fixed number of times

• 
  

  To either do something if a condition is true or do something else

• 
  

  To break out of some block of code

• 
  

  To repeat something while a condition is true