Java Learning Notes (45)-Layout manager

FlowLayout Streaming layout Manager

/ * * FlowLayout streaming layout manager */ Public classTest03 { Public Static void Main(string[] args) {Frame frame=NewFrame ("My Frame"); Button btn1=NewButton ("Button 1"); Button btn2=NewButton ("Button 2"); Button btn3=NewButton ("Button 3"); Button btn4=NewButton ("button 4");        Frame.add (BTN1);        Frame.add (BTN2);        Frame.add (BTN3);        Frame.add (BTN4); Frame.setsize ( $, $); Frame.setlocationrelativeto (NULL);//frame.setlayout (New FlowLayout ());//Set the form layout to flow layout, default to Border layoutFrame.setlayout (NewFlowLayout (Flowlayout.left,Ten,Ten));//Set the form layout to flow layout, default to Border layoutFrame.setvisible (true); }}

BorderLayout Border layout Manager

 import java.awt.BorderLayout; import Java.awt.Button; import java.awt.Color; import java.awt.FlowLayout; import java.awt.Frame;/ * *borderlayout Border layout manager * / Public  class Test04 {     Public Static voidMain (string[] args) {Frame frame=NewFrame ("My Frame"); Button btn1=NewButton ("Button 1"); Button btn2=NewButton ("Button 2"); Button btn3=NewButton ("Button 3"); Button btn4=NewButton ("button 4"); Button btn5=NewButton ("button 5"); Frame.setlayout (NewBorderLayout (Ten,5)); Frame.add ("North", BTN1); Frame.add ("South", BTN2); Frame.add ("West", BTN3); Frame.add ("East", BTN4); Frame.add ("Center", BTN5);//Add components to center middle area by defaultFrame.add ("North",NewButton ("button 6")); Frame.setsize ( $, $); Frame.setlocationrelativeto (NULL);        Frame.setbackground (Color.gray); Frame.setvisible (true); }}

GridLayout Grid Layout Manager

 import java.awt.BorderLayout; import Java.awt.Button; import java.awt.Color; import java.awt.FlowLayout; import java.awt.Frame; import java.awt.GridLayout;/ * *gridlayout Grid Layout manager * / Public  class Test05 {     Public Static voidMain (string[] args) {Frame frame=NewFrame ("My Frame"); Button btn1=NewButton ("Button 1"); Button btn2=NewButton ("Button 2"); Button btn3=NewButton ("Button 3"); Button btn4=NewButton ("button 4"); Button btn5=NewButton ("button 5"); Button btn6=NewButton ("button 6"); Button btn7=NewButton ("button 7"); Frame.setlayout (NewGridLayout (0,2));//Set form to Grid layoutFrame.add (BTN1);        Frame.add (BTN2);        Frame.add (BTN3);        Frame.add (BTN4);        Frame.add (BTN5);        Frame.add (BTN6); Frame.add (BTN7,2);//Add component to specified grid, index starting from 0, component movingFrame.setsize ( $, $); Frame.setlocationrelativeto (NULL);        Frame.setbackground (Color.gray); Frame.setvisible (true); }}

CardLayout Card Layout Manager

 import java.awt.CardLayout; import java.awt.Color; import java.awt.Frame; import java.awt.Panel;/ * * CardLayout card layout Manager */ Public  class Test06 {     Public Static voidMain (string[] args) {Frame frame=NewFrame ("My Forms"); Panel pnl1=NewPanel (); Panel pnl2=NewPanel (); Panel pnl3=NewPanel (); CardLayout c=NewCardLayout ();//Create card layout managerFrame.setlayout (c);//setup form for card layoutPnl1.setbackground (color.red);        Pnl2.setbackground (Color.yellow); Pnl3.setbackground (Color.Blue);//Add a panel component to the form and specify a nameFrame.add (PNL1,"First"); Frame.add (PNL2,"Second"); Frame.add (PNL3,"Third"); C.last (frame);//Show last card, the last component addedC.previous (frame);//Show Previous cardC.show (Frame,"First");//Display a card with the name firstFrame.setsize ( -, -); Frame.setvisible (true); }}

Java Learning Notes (45)-Layout manager