Assignment operators in Java - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to add 5 to the variable num using an assignment operator.

Java

int num = 10;
num [1] 5;

Drag options to blanks, or click blank then click option'

A+=

B-=

C*=

D/=

Attempts:

3 left

💡 Hint

Common Mistakes

Using '-' instead of '+' will subtract instead of add.

Using '*' or '/' will multiply or divide, not add.

The '+=' operator adds the right value to the variable and assigns the result back to it.

2fill in blank

medium

Complete the code to multiply value by 3 using an assignment operator.

Java

int value = 4;
value [1] 3;

Drag options to blanks, or click blank then click option'

A*=

B+=

C-=

D/=

Attempts:

3 left

💡 Hint

Common Mistakes

Using '+=' will add instead of multiply.

Using '-=' or '/=' will subtract or divide, not multiply.

The '*=' operator multiplies the variable by the right value and assigns the result back.

3fill in blank

hard

Fix the error in the code by choosing the correct assignment operator to subtract 2 from count.

Java

int count = 7;
count [1] 2;

Drag options to blanks, or click blank then click option'

A*=

B-=

C+=

D/=

Attempts:

3 left

💡 Hint

Common Mistakes

Using '+=' will increase instead of decrease.

Using '*=' or '/=' will multiply or divide, not subtract.

The '-=' operator subtracts the right value from the variable and assigns the result back.

4fill in blank

hard

Fill both blanks to divide total by 4 and assign the result back, then add 10 to total.

Java

int total = 40;
total [1] 4;
total [2] 10;

Drag options to blanks, or click blank then click option'

A/=

B+=

C-=

D*=

Attempts:

3 left

💡 Hint

Common Mistakes

Mixing up '+' and '-' operators.

Using '*=' instead of '/=' for division.

First, '/=' divides and assigns. Then, '+=' adds and assigns.

5fill in blank

hard

Fill all three blanks to multiply score by 2, subtract 5, then add 3.

Java

int score = 10;
score [1] 2;
score [2] 5;
score [3] 3;

Drag options to blanks, or click blank then click option'

A*=

B-=

C+=

D/=

Attempts:

3 left

💡 Hint

Common Mistakes

Using '+=' instead of '*=' for multiplication.

Mixing the order of operations.

Use '*=' to multiply, '-=' to subtract, and '+=' to add.