Java string next line

// its \r\n
String a = "Hello, "
String b = "there!"
System.out.println(a+b);//returns Hello, there
System.out.println(a+"\r\n"+b);//returns Hello, 
//there! //it will be on the next line!

Java read next line

Scanner scanner = new Scanner(new File("filename"));
while (scanner.hasNextLine()) {
   String line = scanner.nextLine();
   // process the line
}

Source: stackabuse.com

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