Limit max number of characters in a java text field.

 

 If we want to limit the max characters to 2, then the below will suffice (note the length of 1 being used)

 

    private void jTextField4KeyTyped(java.awt.event.KeyEvent evt)                                     
    {                                         
        boolean max = jTextField4.getText().length() > 1;
        if ( max )
        {
            evt.consume();
        }        
    }       

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