Relational operators in Java - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to check if a is greater than b.

Java

boolean result = a [1] b;

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

A<

B!=

C>

D==

Attempts:

3 left

💡 Hint

Common Mistakes

Using '==' instead of '>' to compare values.

Using '<' which means less than.

The '>' operator checks if the left value is greater than the right value.

2fill in blank

medium

Complete the code to check if x is less than or equal to y.

Java

boolean check = x [1] y;

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

A>=

B!=

C==

D<=

Attempts:

3 left

💡 Hint

Common Mistakes

Using '>=' which means greater than or equal to.

Using '==' which means equal to.

The '<=' operator checks if the left value is less than or equal to the right value.

3fill in blank

hard

Fix the error in the code to check if num1 is not equal to num2.

Java

if (num1 [1] num2) {
    System.out.println("Not equal");
}

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

A!=

B==

C>

D<

Attempts:

3 left

💡 Hint

Common Mistakes

Using '==' which checks for equality, not inequality.

Using '>' or '<' which check order, not equality.

The '!=' operator checks if two values are not equal.

4fill in blank

hard

Fill both blanks to create a condition that checks if value is between 10 and 20 inclusive.

Java

if (value [1] 10 && value [2] 20) {
    System.out.println("Within range");
}

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

A>=

B<

C<=

D>

Attempts:

3 left

💡 Hint

Common Mistakes

Using '<' instead of '<=' for the upper bound.

Using '>' instead of '>=' for the lower bound.

The condition checks if value is greater than or equal to 10 and less than or equal to 20.

5fill in blank

hard

Fill all three blanks to create a map that stores keys as uppercase strings and values greater than zero.

Java

Map<String, Integer> filtered = data.entrySet().stream()
    .filter(e -> e.getValue() [1] 0)
    .collect(Collectors.toMap(
        e -> e.getKey().[2](),
        e -> e.getValue() [3] 0
    ));

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

A>

BtoUpperCase

C+

D>=

Attempts:

3 left

💡 Hint

Common Mistakes

Using '>=' instead of '>' in filter changes condition.

Using 'toLowerCase' instead of 'toUpperCase'.

Using '-' instead of '+' for values.

The filter keeps entries with values greater than 0, keys are converted to uppercase, and values are incremented by 0 (no change).