Java Increment Quiz

What does the post-increment operator do in Java?

• Immediately increases the value of a variable by 1

• Decreases the value of a variable by 1

• Increases the value of a variable by 1, but the old value is used in the expression where it's applied

• None of the above

What is the result of the following code snippet? ```java int i = 5; int j = i++; ```

• i = 6, j = 6

• i = 5, j = 5

• i = 6, j = 5

• i = 5, j = 6

Which operator is used to decrement a value in Java?

• `++`

• `--`

• `+=`

• `-=`

What does the pre-decrement operator do in Java?

• Decreases the value of a variable by 1 after the expression is evaluated

• Increases the value of a variable by 1 before the expression is evaluated

• Decreases the value of a variable by 1 before the expression is evaluated

• None of the above

What is the result of the following code snippet? ```java int i = 3; int j = --i; ```

• i = 2, j = 3

• i = 3, j = 2

• i = 2, j = 2

• i = 3, j = 3

How does the post-decrement operator differ from the pre-decrement operator?

• The post-decrement operator decreases the value before the variable is used, while the pre-decrement operator decreases it after.

• There is no difference; they function identically.

• The post-decrement operator decreases the value after the variable is used, while the pre-decrement operator decreases it before.

• The post-decrement operator increases the value, while the pre-decrement operator decreases it.

What is the output of the following code? ```java int a = 10; a--; System.out.println(a); ```

• 9

• 10

• 11

• The code will not compile

Consider the following code snippet: ```java int x = 10; int y = x--; What is the value of y after execution? ```

• 9

• 10

• 11

• The code will not compile

Which of the following statements is true about the increment (`++`) and decrement (`--`) operators in Java?

• They can only be used with variables of type `int`.

• They can be used with any numeric data type.

• They can only be used in loops.

• They automatically convert numeric types to `int`.

What is the result of the following code snippet? ```java int i = 10; i = i--; ```

• 9

• 10

• 11

• The code will not compile