I am having trouble reading from standard input and/or command line

I am having trouble reading from standard input and/or command line

So I have been stuck on this forever. I need my code to accept multiple
files in through the command line and read through the lines for specific
info in the strings. If there are no files in the command line it must
read through the standard in through a Scanner. Here is where I'm at.
import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.util.*;
public class P1 {
static String readLine;
static int lineCount;
static int httpCount;
static int httpsCount;
static int ftpCount;
static int otherSchemesCount;
static int eduCount;
static int orgCount;
static int comCount;
static int otherDomainsCount;
static String protocol;
String schemeString;
static String testedLine;
P1() {
lineCount = 0;
httpCount = 0;
httpsCount = 0;
ftpCount = 0;
otherSchemesCount = 0;
eduCount = 0;
orgCount = 0;
comCount = 0;
otherDomainsCount = 0;
}
boolean testLine(String testedLine) {
if (testedLine.equals("end")) {
return true;
} else {
lineCount++;
String[] schemePart = readLine.split(":");
String part1 = schemePart[0];
if (part1.equals("http")) {
httpCount++;
} else if (part1.equals("https")) {
httpsCount++;
} else if (part1.equals("ftp")) {
ftpCount++;
} else {
otherSchemesCount++;
}
if (readLine.contains("edu")) {
eduCount++;
} else if (readLine.contains("org")) {
orgCount++;
} else if (readLine.contains("com")) {
comCount++;
} else {
otherDomainsCount++;
}
}
return false;
}
public static void main(String[] args) throws FileNotFoundException,
IOException {
int i = 0;
File testFile = new File(args[i]);
if (args[0] == null) {
Scanner scan = new Scanner(System.in);
readLine = scan.nextLine();
} else {
Scanner scanFile = new Scanner(testFile);
readLine = scanFile.nextLine();
}
P1 countLines = new P1();
boolean isEnded = false;
System.out.println("Enter a line of text. "
+ "\nType 'end' to stop and count previous lines.");
while (!isEnded) {
//String testLine = countLines.getLine();
isEnded = countLines.testLine(testedLine);
}
if (lineCount == 1) {
System.out.println(">> Got " + lineCount + " line");
} else {
System.out.println(">> Got " + lineCount + " lines");
}
if (httpCount == 1) {
System.out.println(">> Found " + httpCount + " instance of http");
} else {
System.out.println(">> Found " + httpCount + " instances of http");
}
if (httpsCount == 1) {
System.out.println(">> Found " + httpsCount + " instance of https");
} else {
System.out.println(">> Found " + httpsCount + " instances of https");
}
if (ftpCount == 1) {
System.out.println(">> Found " + ftpCount + " instance of ftp");
} else {
System.out.println(">> Found " + ftpCount + " instances of ftp");
}
if (otherSchemesCount == 1) {
System.out.println(">> Found " + otherSchemesCount + " instance of
other schemes");
} else {
System.out.println(">> Found " + otherSchemesCount + " instances
of other schemes");
}
if (eduCount == 1) {
System.out.println(">> Found " + eduCount + " instance of edu");
} else {
System.out.println(">> Found " + eduCount + " instances of edu");
}
if (orgCount == 1) {
System.out.println(">> Found " + orgCount + " instance of org");
} else {
System.out.println(">> Found " + orgCount + " instances of org");
}
if (comCount == 1) {
System.out.println(">> Found " + comCount + " instance of com");
} else {
System.out.println(">> Found " + comCount + " instances of com");
}
if (otherDomainsCount == 1) {
System.out.println(">> Found " + otherDomainsCount + " instance of
other domains");
} else {
System.out.println(">> Found " + otherDomainsCount + " instances
of other domains ");
}
}
}