java

[Solved] Want to extract a value from String using patterns in java [closed]

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Regex may complicate the code. If its a simple comparison you could use indexOf instead. Seeing the format of your strings it better to use properties then you have better control over the values. Eg import java.io.IOException; import java.io.StringReader; import java.util.Properties; public class StringToProp { public static void main(String[] args) { String str1 = “property: … Read more

[Solved] Same thing like C++ pointer in Java

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Java’s pointers (so called by the language specification, while I believe Java programmers mostly know them as “references”) do not support pointer arithmetic. And Java has no way to do pointer arithmetic. If you want to do such low-level stuff in Java, one way is to use JNI (the Java Native Interface) to access code … Read more

[Solved] android: how to display the month and years in words from the Calender Date in android? [closed]

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you can format it easily using java.text.SimpleDateFormat SimpleDateFormat sString s= “2013-1-18”; SimpleDateFormat sdf = new SimpleDateFormat(“EEEE,MMMM, dd “); System.out.println(sdf.format(new SimpleDateFormat(“yyyy-M-dd”).parse(s)));df Output: Friday,January, 18 solved android: how to display the month and years in words from the Calender Date in android? [closed]

[Solved] Regex for string that validates for a number which may include decimal and for a particular length [closed]

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Run this code and test with all your inputs.It should solve your scenario. String regex = “^[0-9.]{5}$”; Pattern pattern = Pattern.compile(regex); String name= “123.4”; Matcher matcher = pattern.matcher(name); System.out.println(matcher.matches()); 1 solved Regex for string that validates for a number which may include decimal and for a particular length [closed]

[Solved] How can i simplify this java Statement

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Where do You set color for the selected item? is it possible to set all colors to white and then use switch to set only the selected one to desired color? It would make it at least more pleasant to look at. nav_news_bg.setBackground(color); nav_feed_bg.setBackground(color); nav_profile_bg.setBackground(color); nav_chat_bg.setBackground(color); nav_books_bg.setBackground(color); switch(v.getId()){ case R.id.nav_news: nav_news_bg.setBackground(desiredColor); break; case R.id.nav_feed: . … Read more

[Solved] I am searching for a long time on net. But no use. Please help or try to give some ideas how to achieve this. Can you help me solve this error? [duplicate]

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I am searching for a long time on net. But no use. Please help or try to give some ideas how to achieve this. Can you help me solve this error? [duplicate] solved I am searching for a long time on net. But no use. Please help or try to give some ideas how to … Read more

[Solved] Type mismatch: cannot convert from Cursor to String[] error [closed]

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I don’t know what you try to do there exactly but my best guess is the following: public String fetchThePassword(long paramLong) throws SQLException { SQLiteDatabase localSQLiteDatabase = this.db; String[] columns = new String[] { “pass” }; Cursor cursor = localSQLiteDatabase.query(true, “register”, columns, “id=” + paramLong, null, null, null, null, null); String result = null; if … Read more

[Solved] Swap Characters, first and last [closed]

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public static String swap (String entry){ char[] characters = entry.toCharArray(); if (entry.length() < 6){ return null; // cannot swap if length is under 6! } char tempchar; tempchar = characters[0]; characters[0] = characters[characters.length-1]; characters[characters.length-1] = tempchar; tempchar = characters[1]; characters[1] = characters[characters.length-2]; characters[characters.length-2] = tempchar; tempchar = characters[2]; characters[2] = characters[characters.length-3]; characters[characters.length-3] = tempchar; return … Read more

[Solved] Writing a pattern in java [closed]

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for(int i=0; i <= n; i++) { for(int j=i; j > 0; j–) { System.out.print(j + ” “); } System.out.println(); } In the above loops. First loop goes from 0 to n times depending on value of n. Second loop is goes from value of i and keeps looping as long as j > 0. … Read more

[Solved] android error :ViewRootImpl$CalledFromWrongThreadException [closed]

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Your are touching the views(widgets) in the Non UI Thread. public class B extends Thread { TextView inputtext; Activity activity; public B(Activity activity, TextView x) { inputtext = x; this.activity = activity; } public void run() { activity.runOnUiThread(new Runnable() { @Override public void run() { inputtext.setText(“hero”); } }); } } While starting the Thread B … Read more