java - How do I create spacing in between JButtons with GridBagLayout? -


i trying create little main menu simple scheduling program right now, having bit of difficulty having space in between buttons. stick right next each other, there gap between each button.

i have tried use weightx, weighty commands nothing seems change. have blank space between edges of gui , sides of buttons, , between each button.

here's screenshot

enter image description here

import javax.swing.*; import javax.swing.event.*; import java.awt.*; import java.awt.event.*;  public class scheduler {  jbutton vday, vweek, task, exit; jframe wframe, dframe, tframe;  jlabel head;     public void createframe() {     jframe frame = new jframe("main menu");           buttonlistener btnlst = new buttonlistener();     jpanel panel = new jpanel();     panel.setlayout(new gridbaglayout());     gridbagconstraints c = new gridbagconstraints();      c.weightx = 1;     c.weighty = .25;     c.gridx = 0;     c.gridy = 0;     c.gridwidth = 1;     c.gridheight = 1;     c.fill = gridbagconstraints.both;     head = new jlabel("the plain scheduler");     panel.add(head, c);     c.weightx = 1;     c.weighty = .25;     c.gridx = 0;     c.gridy = 1;     c.gridheight = 2;     c.gridwidth = 3;     vday = new jbutton("view day");     panel.add(vday, c);     c.weightx = 1;     c.weighty = .25;     c.gridx = 0;     c.gridy = 3;     c.gridheight = 2;     c.gridwidth = 3;     vweek = new jbutton("view week");     panel.add(vweek,c);     c.weightx = 1;     c.weighty = .25;     c.gridx = 0;     c.gridy = 5;     c.gridheight = 2;     c.gridwidth = 3;     task = new jbutton("assign/edit tasks");     panel.add(task, c);     c.weightx = 1;     c.weighty = .25;     c.gridx = 0;     c.gridy = 7;     c.gridheight = 1;     c.gridwidth = 2;     exit = new jbutton("exit");     panel.add(exit, c);      vday.addactionlistener(btnlst);     vweek.addactionlistener(btnlst);     task.addactionlistener(btnlst);     exit.addactionlistener(btnlst);      frame.add(panel);     frame.pack();     frame.setvisible(true);     frame.setdefaultcloseoperation(jframe.exit_on_close);     }     public static void main(string[] args) {     scheduler scheduler = new scheduler();     scheduler.createframe();     } }

you can use gridbagconstraints#insets define amount of spacing/padding added cell, example...

buttons

import java.awt.eventqueue; import java.awt.gridbagconstraints; import java.awt.gridbaglayout; import java.awt.insets; import javax.swing.jbutton; import javax.swing.jframe; import javax.swing.jlabel; import javax.swing.jpanel; import javax.swing.uimanager; import javax.swing.unsupportedlookandfeelexception;  public class scheduler {      jbutton vday, vweek, task, exit;     jframe wframe, dframe, tframe;      jlabel head;      public void createframe() {         jframe frame = new jframe("main menu");          jpanel panel = new jpanel();         panel.setlayout(new gridbaglayout());         gridbagconstraints c = new gridbagconstraints();          c.weightx = 1;         c.weighty = .25;         c.insets = new insets(5, 0, 5, 0);         c.gridwidth = gridbagconstraints.remainder;         c.fill = gridbagconstraints.both;         head = new jlabel("the plain scheduler");         panel.add(head, c);         vday = new jbutton("view day");         panel.add(vday, c);         vweek = new jbutton("view week");         panel.add(vweek, c);         task = new jbutton("assign/edit tasks");         panel.add(task, c);         exit = new jbutton("exit");         panel.add(exit, c);          frame.add(panel);         frame.pack();         frame.setvisible(true);         frame.setdefaultcloseoperation(jframe.exit_on_close);     }      public static void main(string[] args) {         eventqueue.invokelater(new runnable() {             @override             public void run() {                 try {                     uimanager.setlookandfeel(uimanager.getsystemlookandfeelclassname());                 } catch (classnotfoundexception | instantiationexception | illegalaccessexception | unsupportedlookandfeelexception ex) {                     ex.printstacktrace();                 }                  scheduler scheduler = new scheduler();                 scheduler.createframe();             }         });     } }

-

Popular posts from this blog

c# - ODP.NET Oracle.ManagedDataAccess causes ORA-12537 network session end of file -

overview i want replace oracle.dataaccess orcale. managed dataaccess, opening connection latter throws ora-12537 network session end of file exception. exception message / stack trace {oracleinternal.network.networkexception (0x000030f9): ora-12537 : netzwerksession: dateiende @ oracleinternal.network.readerstream.read(orabuf ob) @ oracleinternal.ttc.orabufreader.getdatafromnetwork() @ oracleinternal.ttc.orabufreader.read(boolean bignoredata) @ oracleinternal.ttc.marshallingengine.unmarshalub1(boolean bignoredata) @ oracleinternal.ttc.ttcprotocolnegotiation.readresponse()} i trying connect oracle 11g database , not have client installed on local machine. working test application (unmanaged) using oracle.dataaccess works fine . using system; using oracle.dataaccess.client; namespace app.odp.unmanaged { internal class program { private static void main(string[] args) { //dummy connection string
Read more

matlab - Compression and Decompression of ECG Signal using HUFFMAN ALGORITHM -

i want compress , decompress ecg signal stored text message text file , find out file size, cr,prd ratio,and qs. here code compression , decompression of ecg signal using huffman algorithm. i'm trying find out file size, compression ratio,prd ratio,qs. but error i'm getting the ecg file in text format. %clearing variables , screen enter code here clear all; close all; clc; [file1]=uigetfile('*.txt'); %fprintf('enter ecg file name :%s',file1); p=file1; t=sprintf('%s',p); b1=dlmread([file1]); len=length(b1); lead=input('enter lead number :'); %lead=str2double(lead); col2=b1(1:end,lead); e=fix(sqrt(len)); m=1; i=1:e j=1:e g2(i,j)=fix(col2(m)*1000); %amplifying 1000 m=m+1; end end g3=g2; i=1:e j=1:e
Read more

utf 8 - split utf-8 string into bytes in python -

i trying split utf-8 string bytes in python 3. problem is, when use bytearray, byte, encode etc functions array size of element 14 bytes, not 1 byte expected. need split text file sequence of bytes , send them byte after byte using sockets. tried this: infile = open (file, "r") str = infile.read() byte_str = bytes(str, 'utf-8') print("size of byte_str",sys.getsizeof(byte_str[0])) print gives me 14, need 1... suggestion? quoting official documentation : sys.getsizeof(object[, default]) return size of object in bytes. object can type of object. built-in objects return correct results, not have hold true third-party extensions implementation specific. only memory consumption directly attributed object accounted for, not memory consumption of objects refers to. if given, default returned if object not provide means retrieve size. otherwise typeerror raised. getsizeof() calls object’s __sizeof__ method , adds
Read more