Here is my code

private void signup() {


    final String Email = editTextEmail.getText().toString().trim();
    final String Password = editTextPassword.getText().toString().trim();
    final String Phone = editTestable_no.getText().toString().trim();
    final String Adar = editTestator_no.getText().toString().trim();
    final String Username = editTextUsername.getText().toString().trim();


    StringRequest stringRequest = new StringRequest(Request.Method.POST, LOGIN_URL, new Response.Listener<String>() {
        @Override
        public void onResponse(String response) {
            if(response.trim().equals("SUCCESS")){
                opendashboard();
            }else{
                Toast.makeText(register.this,response,Toast.LENGTH_LONG).show();
                //Toast.makeText(login.this,"Something Went Wrong!!!",Toast.LENGTH_LONG).show();

            }
        }
    },
            new Response.ErrorListener(){
                @Override
                public void onErrorResponse(VolleyError error){
                    Toast.makeText(register.this,error.toString(),Toast.LENGTH_LONG).show();
                }
            }) {
        @Override
        protected Map<String , String> getParams() throws AuthFailureError {

            Map<String,String> map = new HashMap<String , String>();

            map.put(KEY_USERNAME,Username);
            map.put(KEY_PASSWORD,Password);
            map.put(KEY_EMAIL,Email);
            map.put(KEY_ADAR,Adar);
            map.put(KEY_MOBILE,Phone);
            return map;
        }
    };
    RequestQueue requestQueue = Volley.newRequestQueue(this);
    requestQueue.add(stringRequest);





}