Chapter 2: Problem 20
Which is a character literal, ' \(\mathrm{B}\) ' or "B "?
Chapter 2: Problem 20
Which is a character literal, ' \(\mathrm{B}\) ' or "B "?
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Get started for freeRefer to the Java primitive data types listed in Table 2-5 for this question. a) If a variable needs to hold whole numbers in the range 32 to 6,000, what primitive data type would be best? b) If a variable needs to hold whole numbers in the range –40,000 to +40,000, what primitive data type would be best? c) Which of the following literals use more memory? 22.1 or 22.1F?
The following declaration appears in a program: short totalPay, basePay \(=500,\) bonus \(=1000\) The following statement appears in the same program: totalPay \(=\) basePay \(+\) bonus; a) Will the statement compile properly or cause an error? b) If the statement causes an error, why? How can you fix it?
What import statement do you write in a program that uses the JOptionPane class?
The variable a is a float and the variable b is a double. Write a statement that will assign the value of \(b\) to a without causing an error when the program is compiled.
All Java source code filenames must end with __________. a) a semicolon b) .class c) .java d) none of the above
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