Question

How to convert a String to an InputStream in Java

Answer 1

import java.io.InputStream;
import java.io.ByteArrayInputStream;

public class MyClass {
    public static void main(String args[]) throws Exception {
        String s = "Java programming language";
        
        InputStream input = new ByteArrayInputStream(s.getBytes("UTF-8")); 
         
        int i;
        while ((i = input.read()) > -1) {
            System.out.print((char) i);
        }
    }
}
 
 
 
/*
run:
 
Java programming language
 
*/

 

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Answer 2

import java.io.InputStream;
import java.io.IOException;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.stream.Collectors;
import java.io.ByteArrayInputStream;
import java.nio.charset.StandardCharsets;

public class MyClass {
    public static void main(String args[]) throws IOException {
        String str = "Java c c++ c# python";
         
        InputStream istream = new ByteArrayInputStream(str.getBytes());
         
        String istreamtext = new BufferedReader(
                            new InputStreamReader(istream, StandardCharsets.UTF_8))
                            .lines()
                            .collect(Collectors.joining("\n"));
 
        System.out.println(istreamtext);
    }
}
  
  
  
   
/*
run:
      
Java c c++ c# python
    
*/

 

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Answer 3

import java.io.InputStream;
import java.io.IOException;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.stream.Collectors;
import java.io.ByteArrayInputStream;
import java.nio.charset.StandardCharsets;

public class MyClass {
    public static void main(String args[]) throws IOException {
        String str = "Java c c++ c# python go";
         
        InputStream istream = new ByteArrayInputStream(str.getBytes("UTF-8"));
         
        String istreamtext = new BufferedReader(
                            new InputStreamReader(istream, StandardCharsets.UTF_8))
                            .lines()
                            .collect(Collectors.joining("\n"));
 
        System.out.println(istreamtext);
    }
}
  
  
  
   
/*
run:
 
Java c c++ c# python go
 
*/

 

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