S1/using Java to understand program logic/06-loop Structure (ii)

Four parts of the loop structure:

(1) Initial part: Set the initial state of the loop

(2) loop body: Repeated execution of code

(3) Iteration part: the part to be executed before the next cycle begins

(4) Cycle conditions: Determine whether to continue the cycle of conditions

For ( expression 1; expression 2; expression 3) {

Loop Body

}

for looping structure 3 meaning of the expression

An expression	Form	Function	Example
Expression 1	Assignment statements	The initial part of the loop structure, assigning the initial value to the loop variable	int i=0
Expression 2	Conditional statements	Cyclic condition of cyclic condition loop structure of cyclic structure	i<100
Expression 3	Assignment statements, usually using the + + or -- operator	The iterative part of a looping structure, usually used to modify the value of a loop variable	i++

Java supports 3 types of jumps: Break,continue, and return.

Break is used to terminate a loop so that the program jumps to the next statement outside the loop body. Statements that are in a loop after a break are no longer executed, and the loop also stops executing.

The difference between break and continue , in the loop structure:

The break statement is used to terminate a loop in which the program jumps to the next statement outside the loop body.

The Continue statement is a statement used to jump out of this loop and into the next loop.

Java's most basic three loop structures, while, Do-while, and for loop structures.

S1/using Java to understand program logic/06-loop Structure (ii)