[JAVA] A program that searches for a character string, and when the search character string is found, displays the character string from the beginning of the line to just before the search character string.

I am making a program that searches for a character string in Java, and when the search character string is found, displays the character string from the beginning of the line to just before the search character string.

I want to get the execution result like this. ↓ スクリーンショット 2020-07-15 19.55.09.png

Current execution result スクリーンショット 2020-07-15 19.56.33.png

Current source code スクリーンショット 2020-07-15 19.57.30.png

Supplementary information PC：　MAC Editor: Atom

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