java - 错误 找不到符号 Main();第 20 行符号 : Method Main() Location class Main 1 error

Question

import java.awt.*;
import java.awt.event.*;
import java.io.*;
import java.lang.*;

public class Main extends Frame 
{
 Label SourceLabelL  = new Label("source");
 Label SourceLabel   = new Label("");
 Label TargetLabel   = new Label("");
     Label FileNameLabel = new Label("File Name: ");
 Button TargeButton  = new Button("Target");
     Button OKButton     = new Button("OK   ");
 GridBagLayout gbl;
 GridBagConstraints c;
 public static void main(String[] args)
{
    Main m = new Main();
}
Main()
 {
     gbl = new GridBagLayout();
     c = new GridBagConstraints();
    int colwidth[]={1,1,1,1,1,1,1,1};
    int colheight[]={1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1};  // theres 18
    double colweightb[]={1,1,1,1,1,1,1,1};
    gbl.SetLayout(Display);
    gbl.SetBounds(0,0,300,900);

找不到符号gbl.SetLayout(显示);符号:变量显示地点:主类我不知道在这里做什么。任何帮助肯定会很好

Answer 1

如果您尝试创建 Main 类的实例，则语法应为:

 Main m = new Main();

Main()是Main类的构造函数