# Java

I've already finishing how to detect the pairs of grouping symbols, however, I don't understand the last line: Write a program to check whether a Java source-code file has correct pairs of grouping symbols. Pass the source-code file name as a command-line argument.

Please explain to me and use a specific example. Thank you!

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A Java program contains various pairs of grouping symbols, such as:

Parentheses: ( and )

Braces: { and }

Brackets: [ and ]

Note that the grouping symbols cannot overlap. For example, (a{b)} is illegal.

Write a program to check whether a Java source-code file has correct pairs of grouping symbols. Pass the source-code file name as a command-line argument.