Java read file to string

public String readFile(String filePath) {
    String result = "";
    try {
        result = Files.readString(Paths.get(filePath));
    } catch (IOException e) {
        e.printStackTrace();
    }
    return result;
}

Load file as string java

public static String loadFileAsString(String path) {
  InputStream stream = YourClassName.class.getResourceAsStream(path);
  try {
    String result = new String(stream.readAllBytes());
    return result;
  } catch (IOException e) {
    e.printStackTrace();
    return null;
  }
}

Load contents of file into string java

package test;

import java.io.BufferedReader;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.nio.charset.StandardCharsets;
import java.nio.file.Files;
import java.nio.file.Paths;


/**
 * Java Program to demonstrate different ways to loop over collection in 
 * pre Java 8 and Java 8 world using Stream's forEach method.
 * @author Javin Paul
 */
public class FileToStringJava8 {

    public static void main(String args[]) throws IOException {

        // How to read file into String before Java 7
        InputStream is = new FileInputStream("manifest.mf");
        BufferedReader buf = new BufferedReader(new InputStreamReader(is));
        
        String line = buf.readLine();
        StringBuilder sb = new StringBuilder();
        
        while(line != null){
            sb.append(line).append("\n");
            line = buf.readLine();
        }
        
        String fileAsString = sb.toString();
        System.out.println("Contents (before Java 7) : " + fileAsString);
        
        
        // Reading file into Stirng in one line in JDK 7
        String contents = new String(Files.readAllBytes(Paths.get("manifest.mf")));
        System.out.println("Contents (Java 7) : " + contents);
        
        
        
        // Reading file into String using proper character encoding
        String fileString = new String(Files.readAllBytes(Paths.get("manifest.mf")), StandardCharsets.UTF_8);
        System.out.println("Contents (Java 7 with character encoding ) : " + fileString);
        

        // It's even easier in Java 8
        Files.lines(Paths.get("manifest.mf"), StandardCharsets.UTF_8).forEach(System.out::println);
        
    }


}

-1

Similar codes

0 vote226 views1 answer
Servlet redirect java
Java
0 vote175 views1 answer
Java streams example
Java
0 vote143 views1 answer
How to use double in insert data programming in java
Java
0 vote144 views1 answer
Java print pdf to printer
Java
1 vote131 views1 answer
Jsonnode change field value
Java
3 votes191 views3 answers
Java does file exist
Java
0 vote160 views1 answer
Android list tostring
Java
0 vote150 views1 answer
Materialbutton remove shadow xml
Java
0 vote171 views1 answer
@crossorigin spring allow all
Java Spring
5 votes152 views1 answer
Java cast bolean to int
Java