The following editor will bring you an example of simply reading and outputting from a file in Java. The editor thinks it’s pretty good, so I’ll share it with you now and give it as a reference. Let’s follow the editor and take a look.
Use Scanner to input and PrintStream to output
Function: read from in.txt and output to out.txt
Code:
Same as below
package ioTest; import java.io.*; import java.util.Scanner; public class TestMain { public static void main(String[] args) { try { Scanner sc=new Scanner(new File("in.txt")); PrintStream ps=new PrintStream("out.txt"); while(sc.hasNext()){ int a=sc.nextInt(); System.out.print(a+" "); ps.println(a); } } catch (Exception e) { e.printStackTrace(); } } }
## Result:
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