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Questions and Answers
What data type should be used for the variable newFee to enable the Course class to compile?
What data type should be used for the variable newFee to enable the Course class to compile?
What will be the output of the given Java program?
What will be the output of the given Java program?
Which data type in Java provides higher precision, especially for decimal values?
Which data type in Java provides higher precision, especially for decimal values?
What happens if the variable percentage is declared as double instead of float?
What happens if the variable percentage is declared as double instead of float?
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What is the main reason for choosing double over float in Java when dealing with decimal values?
What is the main reason for choosing double over float in Java when dealing with decimal values?
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Study Notes
Data Types in Java
- The variable
newFeein theCourseclass should be of typedoubleto enable the class to compile, considering it's likely to hold decimal values.
Java Program Output
- The output of the given Java program depends on the actual code and its implementation, which is not provided in the given text.
Precision in Java
- The
doubledata type in Java provides higher precision, especially for decimal values, compared to thefloatdata type.
Declaring Variables
- If the variable
percentageis declared asdoubleinstead offloat, it will be able to hold more precise decimal values, which can be beneficial in certain calculations.
Choosing Between double and float
- The main reason for choosing
doubleoverfloatin Java when dealing with decimal values is to achieve higher precision and accuracy, especially in mathematical calculations or financial applications.
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Description
Test your knowledge of Java foundational concepts with this practice test for the 1Z0-811 exam. Evaluate your skills with 65 questions and get your final score instantly.
