Why strings are special in Java - Test Your Understanding

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Practice - 5 Tasks

1fill in blank

easy

Complete the code to create a string variable named greeting.

Java

String greeting = [1];

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

A"Hello"

BHello

C'Hello'

Dnew String

Attempts:

3 left

2fill in blank

medium

Complete the code to compare two strings for equality.

Java

if (str1.[1](str2)) {
    System.out.println("Strings are equal");
}

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

AcompareTo

Bequals

C==

DequalsIgnoreCase

Attempts:

3 left

3fill in blank

hard

Fix the error in the code to concatenate two strings correctly.

Java

String fullName = firstName [1] lastName;

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

Aadd()

Bconcat()

C&

D+

Attempts:

3 left

4fill in blank

hard

Fill both blanks to create a string and get its length.

Java

String word = [1];
int length = word.[2]();

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

A"Java"

Blength

Clength()

Dsize()

Attempts:

3 left

5fill in blank

hard

Fill all three blanks to check if a string starts with a letter and convert it to uppercase.

Java

if (text.[1]("A")) {
    String upper = text.[2]();
    System.out.println(upper.[3]());
}

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

AstartsWith

BtoUpperCase

CtoLowerCase

Dtrim

Attempts:

3 left