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Java 输入


 

        1.使用Scanner

  使用时需要引入包import java.util.Scanner;首先定义Scanner对象

  Scanner sc = new Scanner(System.in);

  如果要输入整数,则 int n = sc.nextInt();

  String类型的,则String temp = sc.next();

  比如:

  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.使用BufferedReader

  用前需要引入 import java.io.Reader;

  BufferedReader br = new BufferedReader( new InputStreamReader(System.in) );

  String input = br.readLine();

  比如:

  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) {

  }

  }

  }