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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the output of "Java " + "is great!"?
💡 Hint: Think about how the strings are combined.
Question 2
Easy
If String name = "Alice"; and you concatenate it with "Hello, ", what do you get?
💡 Hint: Remember to include the space!
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What operator is used for string concatenation in Java?
- *
- +
- &
💡 Hint: Think about combining strings and how they are linked.
Question 2
True or False: String concatenation can only combine strings of the same type.
- True
- False
💡 Hint: Consider how numbers can be included in strings.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
How would you concatenate an array of strings and display them as a single sentence? Provide code and output.
💡 Hint: Consider using a loop or `join` method for this.
Question 2
You have a string that contains a number: String age = "20";. How would you concatenate that with another string to create I am 20 years old without any direct adjustment?
💡 Hint: Reflect on how strings convert automatically.
Challenge and get performance evaluation