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Java Swing - 如何使用GridBagLayout将中间的按钮对齐...

layout 【layout】
我们想知道如何使用GridBagLayout将中间的按钮对齐。...
代码展示 运行结果 
import java.awt.Button;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;

import javax.swing.JFrame;

public class Main extends JFrame {
  public static void main(String[] args) {
    Main app = new Main();
    app.setDefaultCloseOperation(EXIT_ON_CLOSE);
    app.setVisible(true);
  }
  Main() {
    this.setLayout(new GridBagLayout());
    GridBagConstraints c = new GridBagConstraints();
    c.fill = GridBagConstraints.HORIZONTAL;
    c.weightx = 1.0;

    this.add(new Button("Resizable"), c);
    c = new GridBagConstraints();
    c.weightx = 0.0;

    this.add(new Button("Not Resizable"));
    this.pack();
  }
}