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16 Ιαν 2020 · Any algorithm or program can be more clear and understood if they use self-contained modules called as logic or control structures. It basically analyzes and chooses in which direction a program flows based on certain parameters or conditions.
Java's branching control uses the if-else structure (http://docs.oracle.com/javase/tutorial/java/nutsandbolts/if.html) for selecting which blocks of code should run. The if-statement by itself lets us choose whether or not to run a block of code: // run these statements only if boolExpr was true; otherwise, skip.
Objectives. In this chapter, you will learn about: Selection criteria. The if-else statement. Nested if statements. The switch statement. Program testing. Common programming errors. Selection Criteria. • if-else statement: Implements a decision structure for two alternatives Syntax:
A control structure is any mechanism that departs from the default of straight-line execution. » selection • if statements • case statements » iteration • while loops (unbounded) • for loops • iteration over collections » other • goto • call/return • exceptions • continuations Control Structures (1/2)
A case or switch statement is a type of selection control mechanism used to allow the value of a variable or expression to change the control flow of program execution via a multiway branch. [1]
The basic attribute of a selection control structure is to be able to select between two or more alternate paths. This is described as either two-way selection or multi-way selection. A question using Boolean concepts usually controls which path is selected.
The basic attribute of a selection control structure is to be able to select between two or more alternate paths. This is described as either two-way selection or multi-way selection. A question using Boolean concepts usually controls which path is selected.
