java - How to Set Multiple Components Visible on a JFrame? -

-

when add more 1 component on jframe , component added last displayed , rest not displayed , issue visibility ?

import java.awt.graphicsenvironment; import java.awt.point; import java.awt.*; import javax.swing.jframe; import javax.swing.jbutton; import javax.swing.jlabel; public class centeringawindow { public static void main(string[] args) {  jframe awindow = new jframe("this window title");  point center = graphicsenvironment.getlocalgraphicsenvironment().getcenterpoint();  int windowwidth = 400;  int windowheight = 150;  jbutton item1=new jbutton("hiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii");  jbutton item2=new jbutton("how ?");  awindow.add(item1);  awindow.add(item2);  jlabel label1=new jlabel("label 1");  awindow.add(label1);  jlabel label2=new jlabel("label 2");  awindow.add(label2);  //center align jframe  awindow.setlocationrelativeto(null);  awindow.setdefaultcloseoperation(jframe.exit_on_close);  awindow.setvisible(true); // display window

} }

you need set layoutmanager appropriate needs.


Comments

Post a Comment

Popular posts from this blog

c++ - How do I get a multi line tooltip in MFC -

-
right now, have tool tip pops when hover on edit box. problem tool tip contains multiple error messages , in 1 long line. need have each error message on own line. error messages contained in cstring new line seperating them. my existing code below. bool ontooltiptext(uint, nmhdr* pnmhdr, lresult* presult) { assert(pnmhdr->code == ttn_needtexta || pnmhdr->code == ttn_needtextw); // need handle both ansi , unicode versions of message tooltiptexta* pttta = (tooltiptexta*)pnmhdr; tooltiptextw* ptttw = (tooltiptextw*)pnmhdr; // tchar szfulltext[256]; cstring strtiptext=_t(""); uint nid = pnmhdr->idfrom; if (pnmhdr->code == ttn_needtexta && (pttta->uflags & ttf_idishwnd) || pnmhdr->code == ttn_needtextw && (ptttw->uflags & ttf_idishwnd)) { // idfrom hwnd of tool nid = ::getdlgctrlid((hwnd)nid); } //m_errprojaccel[ch] contains 1 or more error messages each...
Read more

asp.net - In javascript how to find the height and width -

-
i having .aspx , masterpage page. in masterpage loading aspx page . in aspx page design using generating table structure using code-behind server in javascript how find height , width . regards, kumar if you're looking table height , width, should it var tbl = document.getelementbyid('tbldemo'); alert(tbl.offsetwidth + '\n' + tbl.offsetheight);
Read more

c# - DataTable to EnumerableRowCollection -

-
i have datatable according client requirement can contain invalid date "00/00/1999",null,empty string.(typed datset) when collect them enumerables wish convert of invalid forms empty string. (i.e) enumerablerowcollection<datarow> query = order in _table.asenumerable() select new { orderdate= string.isnullorempty(convert.tostring(order.field<datetime>("orderdate")) || (how check date invalid date) ? string.empty : order.field<datetime>("orderdate") } how check whether date valid date or not? datetime.tryparse...like given current code: datetime date; enumerablerowcollection<datarow> query = order in _table.asenumerable() select new { orderdate= string.isnullorempty(convert.tostring(order.field<datetime>("orderdate")) || !datetime.tryparse(convert.tostring(order.field<datetime...
Read more