Java input Stream Scanner/bufferedreader example of how to use _java

1. Use of scanner

Use to introduce package import Java.util.Scanner; First define Scanner object

Scanner sc = new Scanner (system.in);
If you want to enter an integer, int n = sc.nextint ();
String, temp = Sc.next ();

Like what:

Copy Code code as follows:

Import Java.util.Scanner;

public class Test {
@SuppressWarnings ("resource")
public static void Main (string[] args) {
Scanner Scanner = new Scanner (system.in);
System.out.println (Scanner.next ());
}
}

2. Use of BufferedReader

Import Java.io.Reader should be introduced before use;

BufferedReader br = new BufferedReader (new InputStreamReader (system.in));
String input = Br.readline ();

Like what:

Copy Code code as follows:

Import java.io.*;

public class Test {

public static void Main (string[] args) {
try {
BufferedReader br = new BufferedReader (New InputStreamReader (
system.in));
System.out.println (Br.readline ());
catch (IOException e) {

}
}
}