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POhave to access switchcase statement from another class using jtextfield
 

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  1. POhave to access switchcase statement from another class using jtextfield
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    <p>In this below code section, I created two classes. First class is for designing in that I kept two jtextfields one is used to get String value another one is used to get numeric value. Second class is describing a function of string and numeric for to display the values in jtextfield. I can't to access string parameter in class a textfields.</p> <p>If I will use this code it's accessing both the functions in each jtextfield. Please give a solution for this problem.</p> <pre><code>import java.awt.event.*; import javax.swing.*; public class valid implements KeyListener { perform1 per1=new perform1(); String num1="Alpha"; String num2="Numeric"; String num3="Alphanumeric"; JFrame fr=new JFrame(); JPanel jp=new JPanel(); JLabel label1=new JLabel("STUDENT NAME"); JLabel label2=new JLabel("REG NO"); JTextField text1=new JTextField(15); JTextField text2=new JTextField(15); public valid(){ text1.addKeyListener(this); text2.addKeyListener(this); jp.add(label1); jp.add(text1); jp.add(label2); jp.add(text2); fr.add(jp); fr.setSize(450, 330); fr.setVisible(true); } public void keyTyped(KeyEvent e) { } public void keyPressed(KeyEvent e) { } public void keyReleased(KeyEvent e) { per1.dis(text1, e, num1); per1.dis(text2, e, num2); } public static void main(String ar[]) { new valid(); } } class perform1{ public void dis(JTextField PTxtCtrl,KeyEvent PKeyvalue,String PTempStr){ JLabel error=new JLabel(); String TmpCurntStr; String TmpConvStr; value val = value.valueOf(PTempStr); switch(val){ case Alpha: if(PKeyvalue.getKeyChar()&gt;='a'&amp;&amp; PKeyvalue.getKeyChar()&lt;='z'){ TmpCurntStr=PTxtCtrl.getText(); TmpConvStr=TmpCurntStr.toUpperCase(); PTxtCtrl.setText(TmpConvStr); }else{ JOptionPane.showMessageDialog(error,"Enter only alpha"); } break; case Numeric: if(PKeyvalue.getKeyChar()&gt;='0'&amp;&amp; PKeyvalue.getKeyChar()&lt;='9'){ TmpCurntStr=PTxtCtrl.getText(); System.out.println("hai"); }else{ JOptionPane.showMessageDialog(error,"Enter only numeric"); } break; case Alphanumeric: break; } } enum value{ Alpha, Numeric, Alphanumeric } } </code></pre>
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    1. USBenjamin
    1. USarasicode
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    1. This table or related slice is empty.
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    2. VO
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    3. VO
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    1. COAccording to the naming conventions, variable names should start with lower case letter, following the convention makes it easier to read you code (and avoids the confusion in the HTML markup)
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    2. CO@BinyaminSharet I agree with you, but I also notice that all the parameters are prefixed with P which leads me to believe OP is being instructed by someone who insists on Hungarian notation, and keeping in line with most Hungarian notators I know, he would probably get marks down for not conforming to whatever standards the instructor decided.
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    3. CO@glowcode - I was not aware of that. seems reasonable.
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