04-01 Java switch, for, while, do while statements, loop nesting, jump statements break, continue, return

sentence

Switch statement format:

Switch statement format:

Precautions for switch statement:

根据你键盘录入的字符串，判断是否有满足要求的，如果有就输出。

What is the difference between an IF statement and a switch statement?

For loop statement

For loop statement format:

Output all daffodils on the console:

while Loop

Basic format of while loop:

What is the difference between a while loop and a for loop?

How many times can the paper with a thickness of 0.01M be folded to ensure that the thickness is not lower than the 8848m height of Mount Everest?

do... while

do... While statement format:

For, while, do Differences between while statements

Pay attention to the dead cycle

Output the 99 multiplication table on the console:

Break, continue, return statements

Break: Break:

Continue: continue:

Return statement:

Execution result: none of the statements after return will be executed.

example:

Demand: Xiaofang's mother gives her 2.5 yuan every day, and she will save it. However, whenever this day is the fifth day or a multiple of 5, she will spend 6 yuan. Excuse me, how many days will Xiaofang save 100 yuan.

Execution results: