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interface Base{ boolean m1 (); byte m2(short s);}

which two code fragments will compile?
1. interface Base2 implements Base {}2. abstract class Class2 extends Base { public boolean m1(){ return true; }}3. abstract class Class2 implements Base {}4. abstract class Class2 implements Base { public boolean m1(){ return (7 > 4); }}5. abstract class Class2 implements Base { protected boolean m1(){ return (5 > 7) }}
Consider the following statements: 1. A computer will have a multiply instruction 2. Multiply instruction will be implemented by a special multiply unit. Which of the following is correct?
Which of the following problems is NOT NP-complete? I. Checking satisfiability of arbitrary Boolean formulae II. Checking satisfiability of Boolean formulae in conjunctive normal form (CNF/product of sums) III. Checking satisfiability of Boolean formulae in disjunctive normal form (DNF/sum of products)
You are given a boolean expression which consists of operators &, | and ∧ (AND, OR and XOR) and symbols T or F (true or false). You have to find the number of ways in which the symbols can be parenthesized so that the expression evaluates to true. This is the boolean parenthesization problem. Which of the following methods can be used to solve the problem?
What specifies the values of a Boolean expression for every possible combination of values of the variables in the Boolean expression?
Multiply out the Boolean expression (A’ + B).(A’ + C).(A’ + D).
Multiply out the Boolean expression (A + B’).(A + C’).(A + D’).
Multiply out the Boolean expression (A + B).(A + C).(A + D’).
Multiply out the Boolean expression (A + B).(A + C’).(A + D).
In the following passage, some of the words have been left out. Read the passage carefully and select the correct answer for the given blank out of thefour alternatives.
That is why publicly invoking these symbols has to be an act of responsible citizenship and not self­____________ demagoguery, but thedifference can be hard to _______________. The problem with emotive symbols is that _________________ they can multiply the force ofarguments, they cannot replace the arguments__________________. All persuasion harnesses symbols but principled persuasion must alsoprovide arguments that can be _____________ debated. The problem with emotive symbols is that _________________ they can multiply the force of arguments,