When the ____ operator is used with two expressions, the condition is true only if both expressions are true by themselves.
A. ||
B. &&
C. !
D. %%
Answer: B
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What is the name of a key in one table that is required to matche a primary key in another table?
a. Foreign key. b. Matching key. c. Joined key. d. Linking key.
Write code statements to create a DecimalFormat object that will round a formatted value to 4 decimal places. Then write a statement that uses that object to print the value of result, properly formatted.
What will be an ideal response?
Which of the following statements about the conditional operator (?:) is false?
a. The conditional operator is a ternary operator, meaning that it takes three operands. b. The first operand is a boolean expression. c. The second operand is the result value if the condition evaluates to false. d. The second operand is the result value if the condition evaluates to true.
A bond pays interest at 7 percent a year. The interest is taxed at a rate of 28 percent. What interest rate would a nontaxable bond need to pay to yield the same after-tax income as the taxable bond?
Its easier to work this problem with the rates in decimal form. So at the beginning divide the given rates by 100. At the end, convert the result to a percent by multiplying by 100. Let v = value of taxable bond. Taxable interest = 0.07v Tax on interest = 0.28*0.07v After-tax income — taxable interest — tax on interest = (0.07v) — (0.28 * 0.07v) = (1 — 0.28) * (0.07v) — 0.72 * 0.07v after factoring out 0.07v after doing the subtraction