java - How to align the jlabel text to left inside the jpanel -


i trying align jlabel left i'm failing let me know how can tackle problem suggestions regarding appreciated

i have attempted slice of code yet not solving problem 

   jlabel=new jlabel("label text",swingconstants.left);    jlabel.sethorizontalalignment(swingconstants.left);

here complete code

import javax.swing.*;  import java.awt.borderlayout; import java.awt.color; import java.awt.dimension; import java.awt.gridbagconstraints; import java.awt.gridbaglayout; import java.awt.gridlayout; import java.awt.event.actionevent; import java.awt.event.actionlistener; import java.awt.event.windowadapter; import java.awt.event.windowevent;   public class mygui1 extends jpanel implements actionlistener {     /**      *       */     static jscrollpane jsp;     protected jpanel panel;     protected jtextarea textarea;     static jframe frame;         jlabel jlabel=null;      public mygui1() {       //to lay out container's components in rectangular grid         super(new gridbaglayout());          gridbagconstraints c = new gridbagconstraints();         c.gridwidth = gridbagconstraints.remainder;          c.fill = gridbagconstraints.horizontal;          jbutton jbutton=new jbutton("button");         jbutton.setactioncommand("button");         jbutton.addactionlistener(this);         add(jbutton,c);          c.gridy=1;       c.gridwidth = gridbagconstraints.remainder;         c.fill = gridbagconstraints.both;          c.weightx = 1.0;         c.weighty = 1.0;         setbackground(color.cyan);         panel=new jpanel();         panel.setlayout(new boxlayout(panel,boxlayout.page_axis));         jsp=new jscrollpane(panel);          jsp.setpreferredsize(new dimension(300,300));          jsp.sethorizontalscrollbarpolicy(scrollpaneconstants.horizontal_scrollbar_as_needed);         jsp.setverticalscrollbarpolicy(scrollpaneconstants.vertical_scrollbar_as_needed);          add(jsp, c);         setborder(borderfactory.createemptyborder(10, 10, 10, 10));      }      public void actionperformed(actionevent evt) {           if("button".equals(evt.getactioncommand())){              execute();          }     }     synchronized public void execute(){              // remove content of panel             panel.removeall();             // refresh window                  for(int i=0;i<20 ;i++){                            jlabel=new jlabel("labe1l"+i,swingconstants.left);                          // jlabel.setalignmentx(center_alignment);                         // jlabel.setalignmenty(left_alignment);                          textarea=new jtextarea();                          textarea.settext("sample text");                          if(i==2){                           textarea.settext("sample text........................\nsample text.................. ");                          }                        if(i==5){                           textarea.settext("sample text.\nsample text.sample text.\nsample text. ");                          }                      if(i==7){                           textarea.settext("sample text.\nsample text.sample text.\nsample text sample text..\nsample text.sample text..\nsample text. ");                          }                           textarea.append("\n");                      textarea.seteditable(false);                         jlabel.setlayout(new borderlayout());                          jlabel.sethorizontalalignment(swingconstants.left);                        panel.add(jlabel);                             // in order wrap data in text area                            textarea.setlinewrap(true);                             panel.add(textarea);                               jlabel.setpreferredsize(new dimension(240,30));                            javax.swing.swingutilities.invokelater(new runnable() {                                public void run() {                                //    textarea.setpreferredsize(getminimumsize());                                 //  panel.setpreferredsize(getsize());                                 panel.revalidate();                                   panel.repaint();                                    jsp.getverticalscrollbar().setvalue(0);                                    jsp.validate();                                 }                            });                          }                      jsp.revalidate();                     jsp.repaint();                     frame.repaint();                         frame.revalidate();     }     @suppresswarnings("static-access")     private static void createandshowgui() {         //create , set window.         frame = new jframe("desktopsearchengine");         frame.setlayout(new borderlayout());         frame.setdefaultcloseoperation(jframe.exit_on_close);          //adding window listener exit operation         frame.addwindowlistener( new windowadapter()         {             public void windowclosing(windowevent e)             {                 jframe frame = (jframe)e.getsource();                  int result = joptionpane.showconfirmdialog(                     frame,                     "are sure want exit application?",                     "exit application",                     joptionpane.yes_no_option);                  if (result == joptionpane.yes_option)                     {                      frame.setdefaultcloseoperation(jframe.exit_on_close);                     }                 else if(result==joptionpane.no_option){                     frame.setdefaultcloseoperation(jframe.do_nothing_on_close);                 }             }         });         //add contents window gui part , perform operations         frame.add(new mygui1());          //display window.         frame.pack();         //to keep frame visible          frame.setvisible(true);      }      public static void main(string[] args) {         //schedule job event dispatch thread:         //creating , showing application's gui.         javax.swing.swingutilities.invokelater(new runnable() {             public void run() {                 createandshowgui();               }         });     }      }

you wrap label in jpanel flowlayout.leading

jpanel wrapper = new jpanel(new flowlayout(flowlayout.leading,0, 0)); wrapper.add(jlabel); panel.add(wrapper);

enter image description here

also remember follow java naming convention. variables begin lower case letters using camel casing: jlabel → jlabel


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