Java - Flow of Control Flashcard

Front

What is the purpose of the length() method in Java?

Back

The length() method is used to determine the number of characters in a String.

Front

How do you compare the lengths of two String variables in Java?

Back

You can compare the lengths using the expression s1.length() == s2.length().

Front

What is a logical error in programming?

Back

A logical error occurs when the program runs without crashing, but produces incorrect results.

Front

What does the if-else statement do in Java?

Back

The if-else statement allows the execution of certain code blocks based on whether a condition is true or false.

Front

What is the significance of curly braces in Java if statements?

Back

Curly braces define a block of code that will execute if the condition is true, allowing for multiple statements.

Front

What is the output of the following code if x = 5? if (x > 10) System.out.println("Large"); else System.out.println("Small");

Back

The output will be 'Small'.

Front

What is the difference between == and .equals() in Java?

Back

== checks for reference equality, while .equals() checks for value equality.

Front

What is an infinite loop?

Back

An infinite loop is a loop that continues to execute indefinitely because its terminating condition is never met.

Front

How can you prevent logical errors in your code?

Back

You can prevent logical errors by thoroughly testing your code and using debugging tools.

Front

What is the purpose of the else if statement?

Back

The else if statement allows for multiple conditions to be checked in sequence.