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Questions and Answers
What is the purpose of a variable in a program?
What is the purpose of a variable in a program?
- To allow for easy access to a specific value (correct)
- To restrict the type of values that can be stored
- To hold a value of any type
- To store a memory location
Which Java data type allows for very small integers?
Which Java data type allows for very small integers?
- int
- float
- byte (correct)
- double
What is the range of values for the Java data type 'long'?
What is the range of values for the Java data type 'long'?
- -2147483648 to 2147483647
- -32768 to 32767
- -9223372036854775808 to 9223372036854775807 (correct)
- -128 to 127
What are the scalar types or primitives in Java often referred to as?
What are the scalar types or primitives in Java often referred to as?
Which type of value used within a program is referred to as a data type?
Which type of value used within a program is referred to as a data type?
What is the main characteristic of a variable in Java?
What is the main characteristic of a variable in Java?
In Java, what is the purpose of using the concatenation operator + as seen in the given code snippet?
In Java, what is the purpose of using the concatenation operator + as seen in the given code snippet?
What does the keyword 'final' indicate when used before a variable declaration in Java?
What does the keyword 'final' indicate when used before a variable declaration in Java?
What is the purpose of using constants in a Java program?
What is the purpose of using constants in a Java program?
What will happen if an attempt is made to modify the value of a constant in a Java program?
What will happen if an attempt is made to modify the value of a constant in a Java program?
What naming convention is commonly used for constant names in Java?
What naming convention is commonly used for constant names in Java?
What is the output of the given Java code snippet? public static void main(String[] args) { final int num1 = 10; int num2 = 5; System.out.print(num1 + num2); }
What is the output of the given Java code snippet? public static void main(String[] args) { final int num1 = 10; int num2 = 5; System.out.print(num1 + num2); }
What type of data items do constants represent in a Java program?
What type of data items do constants represent in a Java program?
What is the significance of using constants in Java code maintenance?
What is the significance of using constants in Java code maintenance?
What is the primary purpose of using symbolic constants in programming?
What is the primary purpose of using symbolic constants in programming?
When declaring symbolic constants, what naming convention is commonly followed in Java?
When declaring symbolic constants, what naming convention is commonly followed in Java?
What is the purpose of declaring a variable in Java?
What is the purpose of declaring a variable in Java?
What is the significance of using constants in Java code maintenance?
What is the significance of using constants in Java code maintenance?
What is the range of values for the Java data type 'long'?
What is the range of values for the Java data type 'long'?
What is the primary purpose of using symbolic constants in programming?
What is the primary purpose of using symbolic constants in programming?
What naming convention is commonly used for constant names in Java?
What naming convention is commonly used for constant names in Java?
Which Java data type allows for very small integers?
Which Java data type allows for very small integers?
What is the main characteristic of a variable in Java?
What is the main characteristic of a variable in Java?
In Java, what is the purpose of using the concatenation operator + as seen in the given code snippet?
In Java, what is the purpose of using the concatenation operator + as seen in the given code snippet?
What does the keyword 'final' indicate when used before a variable declaration in Java?
What does the keyword 'final' indicate when used before a variable declaration in Java?
'Primitive Data types' in Java are often referred to as:
'Primitive Data types' in Java are often referred to as:
When declaring symbolic constants, what naming convention is commonly followed in Java?
When declaring symbolic constants, what naming convention is commonly followed in Java?
What will happen if an attempt is made to modify the value of a constant in a Java program?
What will happen if an attempt is made to modify the value of a constant in a Java program?
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