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Java PrintStream Class
The PrintStream class provides methods to write data to another stream. The PrintStream class automatically flushes the data so there is no need to call flush() method. Moreover, its methods don’t throw IOException.
Class declaration
Let’s see the declaration for Java.io.PrintStream class:
Methods of PrintStream class
| Method | Description |
|---|---|
| void print(boolean b) | It prints the specified boolean value. |
| void print(char c) | It prints the specified char value. |
| void print(char[] c) | It prints the specified character array values. |
| void print(int i) | It prints the specified int value. |
| void print(long l) | It prints the specified long value. |
| void print(float f) | It prints the specified float value. |
| void print(double d) | It prints the specified double value. |
| void print(String s) | It prints the specified string value. |
| void print(Object obj) | It prints the specified object value. |
| void println(boolean b) | It prints the specified boolean value and terminates the line. |
| void println(char c) | It prints the specified char value and terminates the line. |
| void println(char[] c) | It prints the specified character array values and terminates the line. |
| void println(int i) | It prints the specified int value and terminates the line. |
| void println(long l) | It prints the specified long value and terminates the line. |
| void println(float f) | It prints the specified float value and terminates the line. |
| void println(double d) | It prints the specified double value and terminates the line. |
| void println(String s) | It prints the specified string value and terminates the line. |
| void println(Object obj) | It prints the specified object value and terminates the line. |
| void println() | It terminates the line only. |
| void printf(Object format, Object… args) | It writes the formatted string to the current stream. |
| void printf(Locale l, Object format, Object… args) | It writes the formatted string to the current stream. |
| void format(Object format, Object… args) | It writes the formatted string to the current stream using specified format. |
| void format(Locale l, Object format, Object… args) | It writes the formatted string to the current stream using specified format. |
Example of java PrintStream class
In this example, we are simply printing integer and string value.
Output
Success...
The content of a text file testout.txt is set with the below data
2016 Hello Java Welcome to Java
Example of printf() method using java PrintStream class:
Let’s see the simple example of printing integer value by format specifier using printf() method of java.io.PrintStream class.
Output
19
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