Eclipse reading stdin (System.in) from a file

Pure Java

You can redirect System.in with a single line of code:

System.setIn(new FileInputStream(filename));

See System.setIn().

Eclipse config

In Eclipse 4.5 or later, the launch configuration dialog can set System.in to read from a file. See the announcement here.

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Eclipse reading stdin (System.in) from a file

Eclipse reading stdin (System.in) from a file

Pure Java

Eclipse config

Related Articles

How to read in a duplicate from a file in C ++

What is the best way in PHP to read the last lines from a file?

Java - Reading in signed integers from a file

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