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<!DOCTYPE html>
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<meta name="description" content="A PrintStream adds functionality to another output stream, namely the ability to print representations of various data values conveniently. Unlike other output streams, a PrintStream never throws an IOException; instead, exceptional situations merely set an internal flag that can be tested via the checkError method. Optionally, a PrintStream can be created so as to flush automatically."/>
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<h3><strong>Java PrintStream Class
</strong></h3>
<p><strong>In this tutorial, we will learn about Java PrintStream and its methods with the help of examples.
</strong></p><p>A PrintStream adds functionality to another output stream, namely the ability to print representations of various data values conveniently. Unlike other output streams, a PrintStream never throws an IOException; instead, exceptional situations merely set an internal flag that can be tested via the checkError method. Optionally, a PrintStream can be created so as to flush automatically.
All characters printed by a PrintStream are converted into bytes using the platform’s default character encoding. The PrintWriter class should be used in situations that require writing characters rather than bytes.</p>
<img alt="The PrintStream class is a subclass of the Java OutputStream." src=javaphoto/Java-printstream.png title="Java PrintStream Class" height="350px">
<h4><strong>Declaration</strong></h4> <!-- Edit the content here -->
<code><pre>public class PrintStream
extends FilterOutputStream
implements Appendable, Closeable</pre></code>
<h4><strong>Constructors :</strong></h4>
<ul>
<li>PrintStream(File file): Creates a new print stream, without automatic line flushing, with the specified file.</li>
<li>PrintStream(File file, String csn) : Creates a new print stream, without automatic line flushing, with the specified file and charset.</li>
<li>PrintStream(OutputStream out) : Creates a new print stream.</li>
<li>PrintStream(OutputStream out, boolean autoFlush) : Creates a new print stream.</li>
<li>PrintStream(OutputStream out, boolean autoFlush, String encoding) : Creates a new print stream.</li>
<li>PrintStream(String fileName) : Creates a new print stream, without automatic line flushing, with the specified file name.</li>
<li>PrintStream(String fileName, String csn) :Creates a new print stream, without automatic line flushing, with the specified file name and charset.</li></ul>
<h4><strong>Commonly used methods of PrintStream class
</strong></h4>
<ul>
<li><strong>public void print(boolean b):</strong> it prints the specified boolean value.</li>
<li><strong>public void print(char c):</strong> it prints the specified char value.</li>
<li><strong>public void print(char[] c):</strong> it prints the specified character array values.</li>
<li><strong>public void print(int i):</strong> it prints the specified int value.</li>
<li><strong>public void print(long l):</strong> it prints the specified long value.</li>
<li><strong>public void print(float f):</strong> it prints the specified float value.</li>
<li><strong>public void print(double d):</strong> it prints the specified double value.</li>
<li><strong>public void print(String s):</strong> it prints the specified string value.</li>
<li><strong>public void print(Object obj):</strong> it prints the specified object value.</li>
<li><strong>public void println(boolean b):</strong> it prints the specified boolean value and terminates the line.</li>
<li><strong>public void println(char c):</strong> it prints the specified char value and terminates the line.</li>
<li><strong>public void println(char[] c):</strong> it prints the specified character array values and terminates the line.</li>
<li><strong>public void println(int i):</strong> it prints the specified int value and terminates the line.</li>
<li><strong>public void println(long l):</strong> it prints the specified long value and terminates the line.</li>
<li><strong>public void println(float f):</strong> it prints the specified float value and terminates the line.</li>
<li><strong>public void println(double d):</strong> it prints the specified double value and terminates the line.</li>
<li><strong>public void println(String s):</strong> it prints the specified string value and terminates the line./li>
</li><li><strong>public void println(Object obj):</strong> it prints the specified object value and terminates the line.</li>
<li><strong>public void println():</strong> it terminates the line only.</li>
<li><strong>public void printf(Object format, Object... args):</strong> it writes the formatted string to the current stream.</li>
<li><strong>public void printf(Locale l, Object format, Object... args):</strong> it writes the formatted string to the current stream.</li>
<li><strong>public void format(Object format, Object... args):</strong> it writes the formatted string to the current stream using specified format.</li>
<li><strong>public void format(Locale l, Object format, Object... args):</strong> it writes the formatted string to the current stream using specified format.</li>
</ul>
<h4><strong>Example of java.io.PrintStream class</strong></h4>
<p>Let's see the simple example of printing integer value by format specifier.</p>
<code><pre>class PrintStreamTest{
public static void main(String args[]){
int a=10;
System.out.printf("%d",a);//Note, out is the object of PrintStream class
}
}
Output:10</pre></code>
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