java - How to set a proper layout -

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i want set layout following: 1 column , 5 rows , in center. tried using gridlayout(5,0) remains in left, suggestions how make center?

import java.awt.*; import java.awt.event.*; import javax.swing.*; import javax.swing.jpanel; public class testswinglisteners1 {         private static int cnt1;         private static int cnt2;         public static void main(string[] args) {         jframe fr1 = new jframe("swing window");         container cp;         jbutton bt1;         jbutton bt2;         cnt1 = 0;         cnt2 = 0;         final string scr = null;         final string wnr = null;         jbutton btok, btcancel;         fr1.setdefaultcloseoperation(jframe.exit_on_close);         fr1.setsize(200, 200);         fr1.setresizable(true);         cp = fr1.getcontentpane();         cp.setlayout(new gridlayout(5,0));         // cp.setlayout(new boxlayout(boxlayout.y_axis));         btok = new jbutton("ac milan");         btcancel = new jbutton("real madrid");         final jlabel lbl1 = new jlabel("result: " + cnt1 + "x" + cnt2);         final jlabel lbl2 = new jlabel("last scorer: " + scr);         final jlabel lbl3 = new jlabel("winner: " + wnr);         cp.add(btok);         cp.add(btcancel);         cp.add(lbl1);         cp.add(lbl2);         cp.add(lbl3);         fr1.add(cp, borderlayout.center);         cp.setlayout(new boxlayout(lbl1, boxlayout.line_axis));         //lbl1.settext(displaytext);          btok.addactionlistener(new actionlistener(){             public void actionperformed(actionevent ae) {             cnt1++;              lbl1.settext("result: " + cnt1 + "x" + cnt2);             lbl2.settext("last scorer: ac milan");              if(cnt1>cnt2){                 lbl3.settext("winner: ac milan");                 }             else if(cnt1<cnt2){                 lbl3.settext("winner: real madrid");                 }             else if(cnt1 == cnt2){                 lbl3.settext("winner: draw");                 }             }         });          btcancel.addactionlistener(new actionlistener(){             public void actionperformed(actionevent ae) {             cnt2++;             lbl1.settext("result: " + cnt1 + "x" + cnt2);             lbl2.settext("last scorer: real madrid");             if(cnt1>cnt2){                 lbl3.settext("winner: ac milan");                 }             else if(cnt1<cnt2){                 lbl3.settext("winner: real madrid");                 }             else if(cnt1 == cnt2){                 lbl3.settext("winner: draw");                 }              }         });         fr1.show();         }   } 

gridlayout grid = new gridlayout(5, 0); cp.setlayout(grid);  ...  grid.addcomponent(btok, 0, 0); grid.setcomponentalignment(btok, alignment.middle_center);  ...

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