{"id":14337,"date":"2022-10-07T10:59:46","date_gmt":"2022-10-07T05:29:46","guid":{"rendered":"https:\/\/jassweb.com\/solved\/solved-java-lang-nullpointerexception-while-fetching-value-from-edittext-duplicate\/"},"modified":"2022-10-07T10:59:46","modified_gmt":"2022-10-07T05:29:46","slug":"solved-java-lang-nullpointerexception-while-fetching-value-from-edittext-duplicate","status":"publish","type":"post","link":"https:\/\/jassweb.com\/solved\/solved-java-lang-nullpointerexception-while-fetching-value-from-edittext-duplicate\/","title":{"rendered":"[Solved] java.lang.NullPointerException while fetching value from EditText [duplicate]"},"content":{"rendered":"<p> [ad_1]<br \/>\n<\/p>\n<div id=\"answer-29414647\" class=\"answer js-answer accepted-answer js-accepted-answer\" data-answerid=\"29414647\" data-parentid=\"29414364\" data-score=\"1\" data-position-on-page=\"1\" data-highest-scored=\"1\" data-question-has-accepted-highest-score=\"1\" itemprop=\"acceptedAnswer\" itemscope itemtype=\"https:\/\/schema.org\/Answer\">\n<div class=\"post-layout\">\n<div class=\"votecell post-layout--left\"><\/div>\n<div class=\"answercell post-layout--right\">\n<div class=\"s-prose js-post-body\" itemprop=\"text\">\n<p>You can&#8217;t just instantiate your <code>Activity<\/code> and access the <code>TextView<\/code> members on it. This doesn&#8217;t make any sense:<\/p>\n<pre><code>indoor_patient ins=new indoor_patient();    \nString webUrl = \"http:\/\/10.0.3.2:8084\/data_web\/indoorPatient.jsp?sr_no=\"\n        + ins.sr_no.getText().toString()\n<\/code><\/pre>\n<p>Instead you could figure out what your <code>webUrl<\/code> is in your <code>onClick()<\/code> method and pass in the complete URL as a parameter to the <code>AsyncTask<\/code>:<\/p>\n<pre><code>submit.setOnClickListener(new View.OnClickListener() {\n    @Override\n    public void onClick(View v) {\n        String webUrl = \"http:\/\/10.0.3.2:8084\/data_web\/indoorPatient.jsp?sr_no=\"\n                + ins.sr_no.getText().toString()\n                + \"\"\n                + ins.patient_name.getText().toString()\n                + \"\"\n                + ins.consultant_name.getText().toString()\n                + \"\"\n                + ins.ref_dr.getText().toString()\n                + \"\"\n                + ins.department.getText().toString()\n                + \"\"\n                + ins.rel_name.getText().toString()\n                + \"\"\n                + ins.rel_no.getText().toString()\n                + \"\"\n                + ins.arr_date.getText().toString()\n                + \"\"\n                + ins.arr_time.getText().toString() + \"&amp;submit=Submit\";\n        new dbwork().execute(webUrl);\n    }\n});\n<\/code><\/pre>\n<p>Then change your <code>AsyncTask<\/code> to something like this:<\/p>\n<pre><code>public class dbwork extends AsyncTask&lt;String, String, String&gt; {\n\n    @Override\n    protected String doInBackground(String... params) {\n        String webUrl = params[0];\n        \/\/ TODO Auto-generated method stub\n        StringBuffer strbuffer=new StringBuffer(\"\");\n        \/\/ ...\n<\/code><\/pre>\n<\/p><\/div>\n<div class=\"mt24\"><\/div>\n<\/div>\n<p>            <span class=\"d-none\" itemprop=\"commentCount\"><\/span> <\/p><\/div>\n<\/div>\n<p>[ad_2]<\/p>\n<p>solved java.lang.NullPointerException while fetching value from EditText [duplicate] <\/p>\n","protected":false},"excerpt":{"rendered":"<p>[ad_1] You can&#8217;t just instantiate your Activity and access the TextView members on it. This doesn&#8217;t make any sense: indoor_patient ins=new indoor_patient(); String webUrl = &#8220;http:\/\/10.0.3.2:8084\/data_web\/indoorPatient.jsp?sr_no=&#8221; + ins.sr_no.getText().toString() Instead you could figure out what your webUrl is in your onClick() method and pass in the complete URL as a parameter to the AsyncTask: submit.setOnClickListener(new View.OnClickListener() &#8230; <a title=\"[Solved] java.lang.NullPointerException while fetching value from EditText [duplicate]\" class=\"read-more\" href=\"https:\/\/jassweb.com\/solved\/solved-java-lang-nullpointerexception-while-fetching-value-from-edittext-duplicate\/\" aria-label=\"More on [Solved] java.lang.NullPointerException while fetching value from EditText [duplicate]\">Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[320],"tags":[452,1250,323,328],"class_list":["post-14337","post","type-post","status-publish","format-standard","hentry","category-solved","tag-android","tag-android-edittext","tag-java","tag-nullpointerexception"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>[Solved] java.lang.NullPointerException while fetching value from EditText [duplicate] - JassWeb<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/jassweb.com\/solved\/solved-java-lang-nullpointerexception-while-fetching-value-from-edittext-duplicate\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"[Solved] java.lang.NullPointerException while fetching value from EditText [duplicate] - JassWeb\" \/>\n<meta property=\"og:description\" content=\"[ad_1] You can&#8217;t just instantiate your Activity and access the TextView members on it. This doesn&#8217;t make any sense: indoor_patient ins=new indoor_patient(); String webUrl = &quot;http:\/\/10.0.3.2:8084\/data_web\/indoorPatient.jsp?sr_no=&quot; + ins.sr_no.getText().toString() Instead you could figure out what your webUrl is in your onClick() method and pass in the complete URL as a parameter to the AsyncTask: submit.setOnClickListener(new View.OnClickListener() ... 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This doesn&#8217;t make any sense: indoor_patient ins=new indoor_patient(); String webUrl = \"http:\/\/10.0.3.2:8084\/data_web\/indoorPatient.jsp?sr_no=\" + ins.sr_no.getText().toString() Instead you could figure out what your webUrl is in your onClick() method and pass in the complete URL as a parameter to the AsyncTask: submit.setOnClickListener(new View.OnClickListener() ... 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