一、创建工程

file->new->android application依次填入应用名称、工程名、包名
在工程目录下找到src/com.example.helloworld MainActivity.java

二、添加代码

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;

public class MainActivity extends Activity
{
    private Button button;
 @Override
 protected void onCreate(Bundle savedInstanceState)
 {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.activity_main);
  
     this.button = (Button) this.findViewById(R.id.button1);
         this.button.setOnClickListener(new OnClickListener() {
             @Override
             public void onClick(View v) {
                 Intent intent = new Intent();
                 intent.setClass(MainActivity.this, IntentActivity.class);
                 intent.putExtra(\"name\", \"Hello World\");
                 startActivity(intent);
             }
         }); 
 } 
}