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Java: Chapter 2 Review Questions and Answers Latest Update Graded A+

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  • Java: Chapter 2

Java: Chapter 2 Review Questions and Answers Latest Update Graded A+ What keyword is used to inherit a class in Java? `extends` How do you create a subclass in Java? `class Subclass extends Superclass { }` How do you define an interface in Java? Using the `interface` keyword. Wha...

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  • March 9, 2025
  • 12
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • Java: Chapter 2
  • Java: Chapter 2
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Java: Chapter 2 Review Questions and
Answers Latest Update Graded A+
What keyword is used to inherit a class in Java?


✔✔ `extends`




How do you create a subclass in Java?


✔✔ `class Subclass extends Superclass { }`




How do you define an interface in Java?


✔✔ Using the `interface` keyword.




What is the default value of a boolean variable in Java?


✔✔ false




How do you check if a number is negative in Java?


✔✔ `number < 0`




1

, What operator is used for logical AND in Java?


✔✔ `&&`




What operator is used for logical OR in Java?


✔✔ `||`




What will `System.out.println("Java".toUpperCase());` print?


✔✔ "JAVA"




How do you find the maximum of two numbers in Java?


✔✔ `Math.max(a, b);`




How do you generate a random number in Java?


✔✔ `Math.random();`




How do you check if a string contains another string in Java?


✔✔ `string.contains("text");`




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