Author: allaboutbasic

Sometimes we may need to use the value of a vector mainly the integer or numeric value in SQL to execute a query . Suppose you have a vector named   studentAge which contains two numeric value for example: [10,12]. Now, if you want to use these two vectors in the SQL to for query execution then you have to write the query as given below.

Continue reading “Java Vector Numeric value and SQL Query: How to use Numeic or integer values of a vector in SQL and also how to execute them.” →

Sometimes in java while we do coding and use HashMap we may need to check or see the values reside in Key and their corresponding Data or Values at the same time. Here I am sharing you another simple but useful technique to see the key value pair data of HashMap at a time. Just copy the code below and run it on your computer.

Continue reading “Java HashMap Key Value Pair: How to show the Key Value pair data of HashMap.” →

Today I am sharing you another basic but important technique about string manipulation. While coding in java, sometimes we need to split or break a string into individual word according to space, commas, colon or any other character between them and then save that individual words into an array of string.

Continue reading “Java break string in into individual words: How to split a string according to space,comma, colon and more between them and then save it in an array of string.” →

Here, I am sharing you another basic technique about java where I have searched a word in a String and then replace it by another word. In this technique I have avoided case differences (avoiding upper case or lower case letter difference). From this example you will be able to know about

1. How to search any specific word in a string



2. How to avoid case difference  while searching a word in a string using java
3. How to replace any specific word ignoring case difference.

Continue reading “Java String Manipulation: How to search or match any given word in a string and then replace that word” →

Here I am sharing you a simple but useful way about JButton and JTable. Sometimes in designing   software, where we are using JButton and JTable, we may need to code or design in such a way that just user will click on the JButton (by using JButton ActionListener) and the JTable will show or appear with its value. Copy the code below and run on your computer.

Continue reading “Java JButton Click event and JTable: Click on the JButton and the JTable will show or appear” →

Here I am sharing with you another simple but important  fact related to  java JTable and JButton. If you are using JButton and JTable in your software, it may need to place your JButton just under or below the JTable. Here I have shown the way how to place JButton just beneath the JTable. Just copy the code below and run in your pc.

Here is the Code:   JButton Just Below or beneath the JTable

Continue reading “Java JButton below the JTable: How to use and place JButton just under or beneath the JTable.” →

In my last post  I shared  about how to assign two different JTextField in two different JTable Column cells. Today I am sharing with you  another important part of  JTable cell validation where I have tried to show you about how to make  first column of JTable cells take only Char or string input and also at the same time  how to make the  cells second column  take int (integer ) input from the users. To implement this validation process I have assigned two different JTextField in two different JTable Cell Column. Just Copy the following code and Run it in your pc.

Continue reading “JTable Cell Validation: How to make Cells of first Column will take Char (string)input other Cells of second column will take int (integer ) input.” →

This post is also related to JTable cell validation, suppose our JTable has 3 columns.  First column will take String or character type input and the second column or Column 2 will take integer type input from users. So, if we want to implement this scenario in our software we can solve it by assigning or using two different JTextField  for the cells of  Column 1 and Column 2 in JTable. In our example we used textBox1 (JTextField) in Column 1, which will  validate string or char type input from users and  for Column 2  I have assigned    textBox (JTextField) to validate int type input from the users.  The given solution is just a basic you can implement it as your own way.  Just Copy the following code and run it.

Continue reading “JTable Cell Edit for validation: How to assign two Different JTextField in two different JTable Column Cells.” →

I think, to assign a JTextField in JTable cells is really important for the purpose of JTable cell validation. For many purpose in software development where we use JTable may need to use JTable cell validation  and for this validation purpose we may also need to assign and use JTextField in JTable cell. In the given Example, I have assigned and used  a JTextField  in the  Column 2  of the following JTable. Just Copy the code and Run it in your computer.

Continue reading “Java JTable Cell and JTextField: How to use and assign JTextField in JTable cell.” →