Example: Java Program to convert String to InputStream
import java.io.ByteArrayInputStream; import java.io.InputStream; import java.nio.charset.StandardCharsets; public class Main { public static void main(String args[]) { // Creates a string String name = "Programiz"; System.out.println("String is: " + name); try { InputStream stream = new ByteArrayInputStream(name.getBytes(StandardCharsets.UTF_8)); System.out.println("InputStream: " + stream); // Returns the available number of bytes System.out.println("Available bytes at the beginning: " + stream.available()); // Reads 3 bytes from the stream stream stream.read(); stream.read(); stream.read(); // After reading 3 bytes // Returns the available number of bytes System.out.println("Available bytes at the end: " + stream.available()); stream.close(); } catch (Exception e) { e.getStackTrace(); } } } Output
String is: Programiz InputStream: java.io.ByteArrayInputStream@5479e3f Available bytes at the beginning: 9 Available bytes at the end: 6
In the above example, we have created a string named name. Here, we have are converting the string into the input stream named stream.
The getBytes() method converts the string into bytes. To learn more, visit Java String getBytes()