this.setSize(new Dimension(300,240));这句代码啥意思Dimension这个类是啥意思

this.setSize(new Dimension(300,240));这句代码啥意思Dimension这个类是啥意思 java.swingclass testLogin extends JFrame{public testLogin(){setTitle(1234);setSize(370,450);setVisible(true);setDefaultCloseOperation(EXIT_ON_CLOSE);JLabel lab=new JLabel(new ImageIcon(1.jpg));add(lab);JLabel lab1=new JLabel(aaa);lab.add(lab1); this is the new this is new shit this book（ ）new How does this new designation This book is new.复数 How is this new movie? Is,new,this,my,friend(.) is this new dress yours? c++ new与this是什么意思 ls this new calculator _____? This is a new beginning dim是什么意思 英语翻译Dim myconn As Data.OleDb.OleDbConnection = New Data.OleDb.OleDbConnection(Provider=Microsoft.Jet.OLEDB.4.0;Data Source= + Server.MapPath(~/App_Data/) + data.mdb;Persist Security Info=False)Dim mysql As StringDim mycmd As Data.OleDb. 英译汉There are events taking place at this time which dim our hopes and lessen the prospects. this is a new sweater对new sweater提问 划线提问 （this new ) skirt is nice