/*******************
 * CS211 Fall 2003 *
 * CS211Out.java   *
 *******************/

import java.io.*;

public class CS211Out implements CS211OutInterface {
    
    String FileName;               // Output filename
    PrintWriter out;               // generic output device (file and cmd-line)
    boolean errorp = false;        // error flag (so far, no problem)
    boolean autoflush = true;      // flag for automatically flushing output
    
    // Open file for output:
    public CS211Out (String FileName) {
	try { 
            this.FileName = FileName;
	    out = new PrintWriter(new FileWriter(new File(FileName)),autoflush);
	} catch (Exception e) {
	    System.out.println("ERROR: Unable to open file " + FileName + " for output\n");
	    errorp = true;
	}
    }
    
    // Report output at the command-line:
    public CS211Out() {
	out = new PrintWriter(System.out,autoflush);
    }
    
    // Close file:
    public void close () {
	try { 
            out.close();
	} catch (Exception e) {
	    if (!errorp)
		System.out.println("Error: Unable to close file " + FileName);
	    errorp = true;
	}
    }
    
    // Print methods for a variety of types:
    
    public void println()         { out.println(); }
    
    public void println(String s) { out.println(s); }
    
    public void println(int i)    { out.println(i); }
    
    public void println(double d) { out.println(d); }
    
    public void println(float f)  { out.println(f); }
    
    public void println(char c)   { out.println(c); }
    
    public void println(Object o) { out.println(o); }
    
    // Why flush? The PW class flushes the buffer *after* a println has exectuted!
    public void print(String s)   { out.print(s); out.flush(); } 
    
    public void print(int i)      { out.print(i); out.flush(); }
    
    public void print(double d)   { out.print(d); out.flush(); }
    
    public void print(float f)    { out.print(f); out.flush(); }
    
    public void print(char c)     { out.print(c); out.flush(); }
    
    public void print(Object o)   { out.print(o); out.flush(); }
}