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Write a program to print message without using println() method in java?
The println() method of the System class accepts aStringas parameter an prints the given String on the console.
Example
public class PrintData {
public static void main(String args[]) {
System.out.println("Hello how are you");
}
}Output
Hello how are you
In addition to this you can print data on the console in several other ways, some of them are −
Using Output Streams
Using output stream classes, you can write dat on the specified destination. You can print data on the screen/console by passing the standard output Stream object System.out as source to them.
Example
import java.io.IOException;
import java.io.OutputStreamWriter;
public class PrintData {
public static void main(String args[]) throws IOException {
//Creating a OutputStreamWriter object
OutputStreamWriter streamWriter = new OutputStreamWriter(System.out);
streamWriter.write("Hello welcome to Tutorialspoint . . . . .");
streamWriter.flush();
}
}Output
Hello welcome to Tutorialspoint . . . . .
Using the printf() and print() methods
The PrintStream class of Java provides two more methods to print data on the console (in addition to the println() method).
The print() − This method accepts a single value of any of the primitive or reference data types as a parameter and prints the given value on the console.
(double value or, a float value or, an int value or, a long value or, a char value, a boolean value or, a char array, a String or, an array or, an object)
The printf() − This method accepts a local variable, a String value representing the required format, objects of variable number representing the arguments and, prints data as instructed.
Example
public class PrintData {
public static void main(String args[]) {
System.out.print("Hello how are you");
System.out.printf(" "+"welcome to Tutorialspoint");
}
}Output
Hello how are you Welcome to Tutorialspoint
Using log4j
The Logger class of the log4j library provides methods to print data on the console.
Dependency
<dependencies> <dependency> <groupId>org.apache.logging.log4j</groupId> <artifactId>log4j-api</artifactId> <version>2.4</version> </dependency> <dependency> <groupId>org.apache.logging.log4j</groupId> <artifactId>log4j-core</artifactId> <version>2.4</version> </dependency> </dependencies>
Example
import java.util.logging.Logger;
public class PrintData{
static Logger log = Logger.getLogger(PrintData.class.getName());
public static void main(String[] args){
log.info("Hello how are you Welcome to Tutorialspoint");
}
}Output
Jun 28, 2019 2:49:25 PM Mypackage.PrintData main INFO: Hello how are you Welcome to Tutorialspoint
4K+ Views
