Question

我想编写一个小的java程序，询问用户输入并检查输入是否在数组中，如果输入在数组中，则将用户重定向到HTML页面。

class Thing < ActiveRecord::Base
  ...

  def save_with_lock
    self.user.with_lock do
      self.save
    end
  end
end

class ThingsController < ApplicationController
  ...

  def create
    @thing = current_user.things.new #current_user is a User
    if @thing.save_with_lock
      redirect_to @thing
    else
      render 'new'
    end
  end
end

Answer 1

使用此

package ed.letslearn.com.apptwo;

import android.app.Activity;
import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        EditText thesentvalue=(EditText)findViewById(R.id.editText2);
        Button b=(Button)findViewById(R.id.button);

        Bundle bundle=getIntent().getExtras();
        String text=bundle.getString("test");
        thesentvalue.setText(text);

        b.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent goBack = new Intent("ed.letslearn.com.appone");
                goBack.putExtra("result", "Sent from App two");
                setResult(Activity.RESULT_OK, goBack);
                finish();
            }
        });

    }


}

检查用户输入是否在数组中

1 个答案: