CodeHS 3.1 Boolean Expressions-4.2 For Loops Review

Front

What is the proper way to compare String values in Java?

Back

The .equals() String method

Front

Which Boolean expression will yield true after the code snippet executes? Options: str1 == str2 && str1 == str3, str1 != str2 && str1.equals(str3), str1 == str2 && str1.equals(str3), None of the above will evaluate to true after this code snippet executes.

Back

str1 == str2 && str1.equals(str3)

Front

What does this Java expression evaluate to? 80 >= 80

Back

This expression will result in true.

Front

What is the difference between == and =?

Back

= is used for assignment, while == is used to check for equality.

Front

Why do we use if statements in Java?

Back

To do something only if a condition is true

Front

Which of the following statements is true?
Options: There can only be one else-if statement in an if-else if statement., An if-else if statement must always have an else clause., An if-else if statement cannot have an else clause., An if-else if statement must always start with an if statement.

Back

An if-else if statement must always start with an if statement.

Front

What does this Java expression evaluate to: true && !false

Back

true

Front

What value of x would make this boolean expression evaluate to false: (x < 10) && (x != 5)?

Back

Any value greater than or equal to 10

Front

Why do we use while loops in Java?

Back

To repeat some code while a condition is true

Front

Which statement can we use inside of a loop to end it? Options: System.out.println; break; SENTINEL; else;

Back

break;