title: Display string variables in a Toast
body: <p>I wanna display the information of 7 <code>EditText</code> in a <code>Toast</code> so I put the edit texts information in 7 string variables but I don't know how.
    Here is what I written:</p>
  
  <pre><code> public class MainActivity extends Activity {
          EditText ed1;
          EditText ed2;
          EditText ed3;
          EditText ed4;
          EditText ed5;
          EditText ed6;
          EditText ed7;
          Button btn;
  
          @Override
          protected void onCreate(Bundle savedInstanceState) {
              super.onCreate(savedInstanceState);
              setContentView(R.layout.main2);
              showinfo();
          }
  
          private void showinfo() {
              ed1= (EditText) findViewById(R.id.editText1);
              ed2= (EditText) findViewById(R.id.editText2);
              ed3= (EditText) findViewById(R.id.editText3);
              ed4= (EditText) findViewById(R.id.editText4);
              ed5= (EditText) findViewById(R.id.editText5);
              ed6= (EditText) findViewById(R.id.editText6);
              ed7= (EditText) findViewById(R.id.editText7);
              btn= (Button) findViewById(R.id.button1);
              ///////
              btn.setOnClickListener(new OnClickListener() {
  
                  @Override
                  public void onClick(View arg0) {
                      // TODO Auto-generated method stub
                      String str1 = ed1.getText().toString();
                      String str2 = ed2.getText().toString(); 
                      String str3 = ed3.getText().toString(); 
                      String str4 = ed4.getText().toString(); 
                      String str5 = ed5.getText().toString(); 
                      String str6 = ed6.getText().toString(); 
                      String str7 = ed7.getText().toString();
                      ////////////
                      Toast.makeText(getApplicationContext(), ,Toast.LENGTH_LONG).show(); 
                  }
              });
          }
  </code></pre>
  
  <p>How can I display all the string variables in <code>Toast</code>?</p>