I have the following statements inside my class:
String myName = "Joe";
System.out.println("My name is " +myName);
I need the value on the variable myName to be printed as italic text.
Try:
System.out.println("\033[3mText goes here\033[0m");
Which will output italic text if your console supports it. You can use [1m for bold, etc. Play around with the different values of [nm.
Here is an example of how to do that:
import java.io.FileWriter;
import java.io.PrintWriter;
import java.io.IOException;
public class Foo
{
public static void main(String[] args) throws IOException
{
PrintWriter out = new PrintWriter(new FileWriter("myFile.html"));
out.println("<u><i>my output</i></u>");
out.flush();
out.close();
}
}
Related
when i am using this program
that "content=content.replaceAll("&.*?;","");" syntax is not work to remove "&#____;" from extracted text, all word like "&#____;" shown as question "?" mark . tell me how do i remove "&#____;" from text..
import org.jsoup.Jsoup;
import org.jsoup.nodes.Document;
class JavaSoup1
{
public static void main(String []args)throws Exception
{
Document doc = Jsoup.connect("http://www.iitbhu.ac.in/").get();
String content=doc.text();
content=content.replaceAll("&.*?;","");
System.out.println(content);
}
}
import java.io.IOException;
import java.io.StringReader;
import org.apache.commons.csv.CSVFormat;
import org.apache.commons.csv.CSVParser;
I try to parse a simple csv file with Apache CSV parser. It works fine as long as I don't use quotes. When I try to add a quote to the input
"a";42
it gives me the error:
invalid char between encapsulated token and delimiter
Here is a simple, complete code:
public class Test {
public static void main(String[] args) throws IOException {
String DATA = "\"a\";12";
CSVParser csvParser =
CSVFormat.EXCEL
.withIgnoreEmptyLines()
.withIgnoreHeaderCase()
.withRecordSeparator('\n').withQuote('"')
.withEscape('\\').withRecordSeparator(';').withTrim()
.parse(new StringReader(DATA));
}
}
I simply can't find out what I've missed in the code.
The problem was so trivial I missed it.
I used withRecordSeparator instead of withDelimiter to set the field separator.
This works as I expected:
public class Test {
public static void main(String[] args) throws IOException {
String DATA = "\"a\";12";
CSVParser csvParser =
CSVFormat.EXCEL
.withIgnoreEmptyLines()
.withIgnoreHeaderCase()
.withRecordSeparator('\n').withQuote('"')
.withEscape('\\').withDelimeter(';').withTrim()
.parse(new StringReader(DATA));
}
}
import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.io.IOException;
public class Example {
public static void main(String[] args) throws IOException
{
File fis=new File("D:/Testcode/Test.txt");
BufferedReader br;
String input;
String var = null;
if(fis.isAbsolute())
{
br=new BufferedReader(new FileReader(fis.getAbsolutePath()));
while ((input=br.readLine())!=null) {
var=input;
}
}
//String var="Duminy to Warner, OUT, Duminy gets a wicket again. He has been breaking...
if(var!=null)
{
String splitstr[]=var.split(",");
if(splitstr[0].contains("to"))
{
String ss=splitstr[0];
String a[]=ss.split("\\s+");
int value=splitstr[0].indexOf("to");
System.out.println("Subject:"+splitstr[0].substring(0,value));
System.out.println("Object:"+splitstr[0].substring(value+2));
System.out.println("Event:"+splitstr[1]);
int count=var.indexOf(splitstr[2]);
System.out.println("Narrated Information:"+var.substring(count));
}
}
}
}
The above program shown the following output:
Subject:Duminy
Object: Warner
Event: OUT
Narrated Information: Duminy gets a wicket again. He has been breaking....
my question is, the text may contain, For example: "Dumto to Warner, OUT, Duminy gets a wicket again. He has been breaking..." means, the above program wouldn't show output like above.. how to identity the text after the space for checking the condition
Instead of:
if(splitstr[0].contains("to")
Change it to:
if(splitstr[0].contains(" to ")
It should then work fine IMO.
I have a program that ask the user for what application it want to open,
this is how the program works:
the user write what application it want to open in a "inputDialog" example the user write "Open application Notepad".
the program looks for the word "application" in the text file so the program is sure that it was a application the user wanted to open.
both the "open application" sentence and the application name get stored in a text file.
then does program remove "Open application" from the text file, and then is only the application name visible.
but always a space comes in front of the application name. Please help me remove the space infront of the application name!!
Here is my code:
package Test_Code;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.DataInputStream;
import java.io.FileInputStream;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import javax.script.ScriptEngine;
import javax.script.ScriptEngineManager;
import javax.script.ScriptException;
import javax.swing.JOptionPane;
public class New_Loader_3 {
public static void main(String[]args) throws IOException{
String Test = JOptionPane.showInputDialog("Test");
BufferedWriter writer = new BufferedWriter(new FileWriter("/Applications/Userdata/tmp/Application.txt"));
writer.write(Test);
writer.close();
int tokencount;
FileReader fr=new FileReader("/Applications/Userdata/tmp/Application.txt");
BufferedReader br=new BufferedReader(fr);
String s1;
int linecount=0;
String line;
String words[]=new String[500];
while ((s1=br.readLine())!=null)
{
linecount++;
int indexfound=s1.indexOf("application");
if (indexfound>-1)
{
FileInputStream fstream1121221 = new FileInputStream("/Applications/Userdata/tmp/Application.txt");
DataInputStream in1121211 = new DataInputStream(fstream1121221);
BufferedReader br1112211 = new BufferedReader(new InputStreamReader(in1121211));
String Name12122131;
while ((Name12122131 = br1112211.readLine()) != null) {
if (Name12122131.startsWith(" "))
{
System.out.println("Name12122131");
}
}
String mega = Test.replaceAll("Open application","");
System.out.println(mega);
BufferedWriter Update_Catch = new BufferedWriter(new FileWriter("/Applications/Userdata/tmp/Application.txt"));
Update_Catch.write(mega);
Update_Catch.close();
}
}
System.out.println("Done");
}
}
It's because the user types in Open<space>application<space>Notepad. Now when you replace Open<space>Applicaton the space before Notepad is still left. So I just you use this instead:
String mega = Test.replaceAll("Open application ","");
Adding a <space> at the end of Open<space>Application will replace the space too. So now mega will be Notepad.
Otherwise you could use what you're already using and then call mega.trim()
How we can take input from the file in the Eclipse?
Just like we direct the I/O from the file from the command line.
java MyProgram < input.txt >output.txt
I am unable to direct the input.
but output directing is easy.
Just go->Run->Run->Configurations->Common
Why don't you use File instead of redirection?
Your program will have a fileName as input and then write the result in a file.
If you need necessarily use the default in you can do something like this:
System.setIn(new FileInputStream("testFile.txt"));
a sample of how it works follows:
import java.io.BufferedReader;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStreamReader;
public class TestSystemIn {
public static void main(final String[] args) throws IOException {
// prepare test
FileOutputStream fos = new FileOutputStream("testFile.txt");
fos.write("testToken".getBytes());
// configure env
System.setIn(new FileInputStream("testFile.txt"));
// perform read test
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
System.out.println("read: " + br.readLine());
}
}
The output could be done in the same way using:
System.setOut(new PrintStream("testFile.txt"));