代码示例

import java.io.Console;
import java.util.Scanner;

public class Demo {
	
	@SuppressWarnings("resource")
	public static void main(String[] args) {
		Scanner scanner = new Scanner(System.in);
		System.out.println("susername:");
		String susername = scanner.nextLine();
		System.out.println("spassword:");
		String spassword = scanner.nextLine();
		
		System.out.println("susername:" + susername + ",spassword:" + spassword);
		
		Console console = System.console();
		String cusername = console.readLine("cusername:");
		char[] cpassword = console.readPassword("cpassword:");
		
		System.out.println("cusername:" + cusername + ",cpassword:" + new String(cpassword));
		
	}

}

区别说明

二者都能接收控制台的输入，不同点是Scanner接收的都是明文输入，Console可以接收密码的隐藏输入，Scanner可以在集成工具中输入，而Console不能，它只能用在标准输入、输出流未被重定向的原始控制台中使用，否则会报空指针异常。