Java 코드를 컴파일해서 응용프로그램 만들려면 어떻게 하나요

$ cat cat.java
import java.io.*;

public class cat {
public static void main (String args[]) {
String thisLine;
for (int i=0; i < args.length; i++) {
try {
System.out.println("===========================");
System.out.println("filename: "+args[i]+", length: "+new File(args[i])
.length()+" bytes");
System.out.println("===========================");
FileInputStream fin = new FileInputStream(args[i]);
// JDK1.1+
BufferedReader myInput = new BufferedReader(new InputStreamReader(fin)
);
while ((thisLine = myInput.readLine()) != null) {
System.out.println(thisLine);
}
System.out.println("===========================");
}
catch (Exception e) {
e.printStackTrace();
}
}
}
}
$ gcj --main=cat -o cat.exe cat.java
$ ldd cat.exe
libgcc_s.so.1 => /lib/libgcc_s.so.1 (0x00707000)
libgcj.so.5 => /usr/lib/libgcj.so.5 (0x0211d000)
libm.so.6 => /lib/tls/libm.so.6 (0x00591000)
libpthread.so.0 => /lib/tls/libpthread.so.0 (0x006a7000)
libz.so.1 => /usr/lib/libz.so.1 (0x006e0000)
libdl.so.2 => /lib/libdl.so.2 (0x0058b000)
libc.so.6 => /lib/tls/libc.so.6 (0x0045e000)
/lib/ld-linux.so.2 (0x00440000)
$ ./cat.exe cat.java
===========================
filename: cat.java, length: 824 bytes
===========================
import java.io.*;

public class cat {
public static void main (String args[]) {
String thisLine;
for (int i=0; i < args.length; i++) {
try {
System.out.println("===========================");
System.out.println("filename: "+args[i]+", length: "+new File(args[i]).length()+" bytes");
System.out.println("===========================");
FileInputStream fin = new FileInputStream(args[i]);
// JDK1.1+
BufferedReader myInput = new BufferedReader(new InputStreamReader(fin));
while ((thisLine = myInput.readLine()) != null) {
System.out.println(thisLine);
}
System.out.println("===========================");
}
catch (Exception e) {
e.printStackTrace();
}
}
}
}
===========================