I copied/tweaked some VisAD code for reading/parsing input files.
The boiled down code and input files (included) run fine on my SGI (running
their latest jdk), but give me a java.lang.NumberFormatException on my NT box
(with "Java 2"). See outputs at very end.
Write once, run anywhere? Any suggestions?
--Randy
//-----------------------------------------------
// readTest.java
import java.rmi.RemoteException;
import java.io.*;
public class readTest extends Object {
static int var1 = 0;
public static void main(String args[])
throws IOException, RemoteException {
int nverts = 4;
float vtx[][] = new float[nverts][3];
System.out.println("nverts = "+nverts+"\n");
// Define input stream - vertices file
InputStreamReader inStr = new InputStreamReader(new
FileInputStream("verts.dat"));
// Define temporary integer array
int[] ints = new int[80];
// convert array of integers to array of characters
int l = 0;
System.out.println("Reading verts...\n");
char[] chars;
for (int c=0; c<nverts; c++) {
int idx = -1;
for (int d=0; d<4; d++) { // idx,x,y,z
l = 0;
try {
ints[0] = inStr.read();
}
catch (Exception e) {
System.out.println("test: "+e);
}
while ( (ints[l] != 32) && (ints[l] != 10) ) {
try {
ints[++l] = inStr.read();
}
catch (Exception e) {
System.out.println("test: "+e);
}
}
chars = new char[l];
for (int i=0; i<l; i++) {
chars[i] = (char) ints[i];
}
if (d==0)
idx = (Integer.valueOf(new String(chars))).intValue();
// idx = (Long.valueOf(new String(chars))).longValue();
else
vtx[c][d-1] = (Float.valueOf(new String(chars))).floatValue();
}
if ((c < 10) || (c > (nverts-10)))
System.out.println(idx+"="+vtx[c][0]+","+vtx[c][1]+","+vtx[c][2]);
}
// do EOF stuff
try {
inStr.close();
}
catch (Exception e) {
System.out.println("readTest: "+e);
}
//---------------------------------------------------------
int ncells = 1;
int hex[][] = new int[ncells][8];
System.out.println("ncells = "+ncells+"\n");
// Define input stream - cells file
inStr = new InputStreamReader(new FileInputStream("cells.dat"));
System.out.println("Reading hex cells...\n");
for (int c=0; c<ncells; c++) {
int idx = -1;
for (int d=0; d<9; d++) { // idx,v1,v2,...,v8
l = 0;
try {
ints[0] = inStr.read();
System.out.println("[0]="+ints[0]);
}
catch (Exception e) {
System.out.println("test: "+e);
}
while ( (ints[l] != 32) && (ints[l] != 10) ) {
try {
ints[++l] = inStr.read();
System.out.println(ints[l]);
}
catch (Exception e) {
System.out.println("test: "+e);
}
}
chars = new char[l];
for (int i=0; i<l; i++) {
chars[i] = (char) ints[i];
}
if (d==0) {
idx = (Integer.valueOf(new String(chars))).intValue();
System.out.println("idx= "+idx);
}
else {
hex[c][d-1] = (Integer.valueOf(new String(chars))).intValue();
System.out.println("hex["+c+"]["+(d-1)+"]= "+hex[c][d-1]);
}
}
if ((c < 10) || (c > (ncells-10)))
System.out.println(idx+"="+hex[c][0]+","+hex[c][1]+","+hex[c][2]+","+hex[c][3]+","+hex[c][4]+","+hex[c][5]+","+hex[c][6]+","+hex[c][7]);
}
// do EOF stuff
try {
inStr.close();
}
catch (Exception e) {
System.out.println("readTest: "+e);
}
}
}
---------- verts.dat --------
1 0.0 0.0 0.0
2 1.0 0.0 0.0
3 1.0 1.0 0.0
4 0.0 1.0 0.0
---------- cells.dat ---------
1 1 2 3 4 5 6 7 8
-----> tail of output on SGI
hex[0][5]= 6
[0]=55
32
hex[0][6]= 7
[0]=56
10
hex[0][7]= 8
1=1,2,3,4,5,6,7,8
-----> on NT
hex[0][5]= 6
[0]=55
32
hex[0][6]= 7
[0]=56
13
10
Exception in ...
