public void create(View view) { if (editTeam.getText().toString().trim().length() == 0) { String errormessage = "Error: Team name cannot be blank"; Toast.makeText(CreateTeam.this, errormessage, Toast.LENGTH_SHORT).show(); return; } String Team_Name = editTeam.getText().toString(); if (Team_Name.matches("[a-zA-Z ]*")) { String message = "Team " + editTeam.getText().toString() + " was added to the database"; editTeam.setText(""); db.addTeam(Team_Name); Toast.makeText(CreateTeam.this, message, Toast.LENGTH_SHORT).show(); populateListViews(); } else { Toast.makeText(CreateTeam.this, "Invalid characters in Team Name", Toast.LENGTH_SHORT).show(); } }