Java简单的系统登陆

class Check{
	public boolean validate(String name,String password){
		if(name.equals("lixinghua")&&password.equals("mima")){
			return true;
			}else{
				return false;
			}
		}
}

class Operate{
	private String info[];
	
	public Operate(String info[]){
		this.info = info;
	}
	
	public String login(){
		Check check = new Check();
		this.isExit();
		String name = this.info[0];
		String password = this.info[1];
		String str = null;
		if(check.validate(name, password)){
			str = "welcome"+name+"!!!";
		}else{
			str = "error!!!";
		}
		return str;
	}
	
	public void isExit(){
		if(this.info.length != 2){
			System.out.println("input error");
			System.out.println("geshi");
			System.exit(1);
		}
	}
}

public class Logindemo {

	public static void main(String[] args) {
		// TODO 自动生成的方法存根
		Operate oper = new Operate(args);
		System.out.println(oper.login());
	}

}