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import java.util.regex.Pattern; String emailPattern = "^[_a-z0-9-]+(.[_a-z0-9-]+)*@(?:\\w+\\.)+\\w+$"; Pattern.matches(emailPattern, email); [출처] email 체크 정규식*Java

ViewGroup layout = (ViewGroup) findViewById(R.id.main_layout); layout.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { // TODO Auto-generated method stub Intent intent = new Intent(this, SubActivity.class); startActivity(intent); } }); [출처] [안드로이드] LinearLayout 자체 클릭시 다음 화면으로 넘어가게 못하나요?