Simple usage of the Scanner class in Java

public static void main(String[] args) { 
    System.out.println(" Please enter a value to end with press enter: "); 
    Scanner sc = new Scanner(System.in); 
    sc.useDelimiter("n"); 
    while (sc.hasNext()) { 
        String s = sc.next(); 
        System.out.println(" Get the value: "+s); 
    } 
} 

1. Use Scanner class to encapsulate system. In input stream

2. Sc. UserDelimiter (" \ n "); Sets the end of the input flag and ends with a enter.

3. Use sc.hasnext () to determine if there is any content, and sc.next() to extract it