display 7 string variables in a toast : I wanna display the information of 7 edit texts in a toast so I put the edit texts information in 7 string variables but I don't know how
Here is what I written:
    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();	
    			}
    		});
    		
    		
    	}


how can I display all the string variables in toast?