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1. Java defines several bitwise operators, which can be applied to the integer types, long, int, short, char, and byte. Binary AND Operator copies a bit to the result if it exists in both operands. Binary OR Operator copies a bit if it exists in either operand. ... Binary Right Shift Operator.
2. Java if-else-if ladder is used to decide among multiple options. The if statements are executed from the top down. As soon as one of the conditions controlling the if is true, the statement associated with that if is executed, and the rest of the ladder is bypassed. If none of the conditions is true, then the final else statement will be executed.
3. A switch statement allows a variable to be tested for equality against a list of values. Each value is called a case, and the variable being switched on is checked for each case.
4. menu-driven program A program that obtains input from a user by displaying a list of options – the menu – from which the user indicates his/her choice. ... This contributes toward making the system more user-friendly.
5. A nested loop join is a naive algorithm that joins two sets by using two nested loops. Join operations are important for database management.