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63 lines
1.6 KiB
Java
63 lines
1.6 KiB
Java
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import edu.princeton.cs.introcs.In;
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import edu.princeton.cs.introcs.Out;
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/*************************************************************************
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* Compilation: javac Cat.java
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* Execution: java Cat input0.txt input1.txt ... output.txt
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* Dependencies: In.java Out.java
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*
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* Reads in text files specified as the first command-line
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* arguments, concatenates them, and writes the result to
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* filename specified as the last command-line arguments.
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*
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* % more in1.txt
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* This is
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*
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* % more in2.txt
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* a tiny
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* test.
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*
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* % java Cat in1.txt in2.txt out.txt
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*
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* % more out.txt
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* This is
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* a tiny
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* test.
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*
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*************************************************************************/
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/**
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* The Cat class provides a client for concatenating the results
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* of several text files.
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*
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* For additional documentation, see <a href="http://algs4.cs.princeton.edu/11model">Section 1.1</a> of
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* Algorithms, 4th Edition by Robert Sedgewick and Kevin Wayne.
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*
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* @author Robert Sedgewick
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* @author Kevin Wayne
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*/
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public class Cat {
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// this class should not be instantiated
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private Cat() { }
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/**
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* Reads in a sequence of text files specified as the first command-line
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* arguments, concatenates them, and writes the results to the file
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* specified as the last command-line argument.
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*/
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public static void main(String[] args) {
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Out out = new Out(args[args.length - 1]);
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for (int i = 0; i < args.length - 1; i++) {
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In in = new In(args[i]);
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String s = in.readAll();
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out.println(s);
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in.close();
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}
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out.close();
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}
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}
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