java的gui设计中的元件大小问题

Question

在框架中插入一个按钮后，如何设置这个按钮的大小呢?

Answer 1

import java.awt.*;
import java.awt.event.*;
public class Taskwork implements TextListener,ActionListener{
Frame f;
TextField tf;
public static void main(String args[])
{
new Taskwork();
}
public Taskwork()
{
f=new Frame("Task work!");
f.setLayout(new GridBagLayout());
f.addWindowListener(new WindowEventHandler());

tf=new TextField("",25);
tf.addTextListener(this);
tf.addActionListener(this);

Button b[]=new Button[24];
int a[][]=new int[30][];     
for(int i=1;i<5;i++)     
{
for(int j=0;j<6;j++)     
{     
a[j+i*6]=new int[]{j,i,1,1,0,0};   
}     
}
a[0]=new int[]{0,0,6,1,0,0};
add(f,tf,a[0]);
abb(f,b[0],a[6],"MC");
abb(f,b[1],a[7],"7");
abb(f,b[2],a[8],"8");
abb(f,b[3],a[9],"9");
abb(f,b[4],a[10],"/");
abb(f,b[5],a[11],"sqrt");
abb(f,b[6],a[12],"MR");
abb(f,b[7],a[13],"4");
abb(f,b[8],a[14],"5");
abb(f,b[9],a[15],"6");
abb(f,b[10],a[16],"*");
abb(f,b[11],a[17],"%");
abb(f,b[12],a[18],"MS");
abb(f,b[13],a[19],"1");
abb(f,b[14],a[20],"2");
abb(f,b[15],a[21],"3");
abb(f,b[16],a[22],"-");
abb(f,b[17],a[23],"1/x");
abb(f,b[18],a[24],"M+");
abb(f,b[19],a[25],"0");
abb(f,b[20],a[26],"+/-");
abb(f,b[21],a[27],".");
abb(f,b[22],a[28],"+");
abb(f,b[23],a[29],"=");
f.setSize(200,200);
f.setVisible(true);
} private static void add(Container con, Component com, int[] is) {
GridBagConstraints cons=new GridBagConstraints();
cons.gridheight=is[3];
cons.gridwidth=is[2];
cons.gridx=is[0];
cons.gridy=is[1];
cons.weightx=is[4];
cons.weighty=is[5];

con.add(com,cons);
}
private static void abb(Frame f,Button b,int[] is,String s){
b=new Button(s);
add(f, b, is);
}
@Override
public void textValueChanged(TextEvent arg0) {
// TODO Auto-generated method stub

}
@Override
public void actionPerformed(ActionEvent arg0) {
tf.setText("");

}
}不知道怎么能改变按钮的大小，谁能告诉我啊？