1. Problem description
How to jump out of the outermost loop when there are multiple for loops?
2. Solution
2.1 Normal single for loop
To jump out of a single-layer loop, use break to jump out normally.
#2.2 In the case of multi-layer loops, using break only jumps out of the innermost loop.
It can be seen from the results that when i is greater than 3, the innermost i loop is jumped out, but the outer j loop is still executed normally.
2.3 Jump out of the specified layer loop
# Simply put, give the for loop a name. The naming rule is: name half-width colon.
For example: jj:, and then follow the name after break to jump out of the corresponding for loop.
Recommended tutorial: Java tutorial
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