无法在使用java netbeans编译器的网格布局中创建按钮

Question

我正在使用netbeans编译器版本7.11。 我正在尝试创建一个GridLayout，但它在显示错误 的地方写了代码来为Layout创建按钮。

它给下面errors

no suitable constructor found for JButton(Java.lang.String.java.lang.String) 
Constructor javax.swing.JButton.JButton(java.lang.String,javax.swing.Icon)is not applicable 
(actual argument Java.lang.String cannot be converted to javax.swing.Icon by method 
invocation conversion) 
Constructor javax.swing.JButton.JButton(javax.swing.Action)is not applicable 
(actual and formal argument lists differ in length) 
Constructor javax.swing.JButton.JButton(java.lang.String)is not applicable 
(actual and formal argument lists differ in length) 
Constructor javax.swing.JButton.JButton(javax.swing.Icon)is not applicable 
(actual and formal argument lists differ in length) 
Constructor javax.swing.JButton.JButton()is not applicable 
(actual and formal argument lists differ in length) 

它显示7行到第11行这些错误下面是我进入到Java编译器的Netbeans的代码。

import java.awt.*; 
import javax.swing.*; 
public class Griddemo extends JFrame{ 
public Griddemo() 
{ 
    setLayout(new GridLayout(3,2)); 
    add(new JButton("Row-1","Col-1")); ---- line7 
    add(new JButton("Row-1","Col-2")); ---- line8 
    add(new JButton("Row-2","Col-1")); ---- line9 
    add(new JButton("Row-2","Col-2")); ---- line10 
    add(new JButton("Row-3","Col-1")); ---- line11 
    setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 
    pack(); 
    setVisible(true); 
} 
public static void main(String args[]) 
{ 
    new Griddemo(); 
} 
} 

Answer 1

你似乎面临的问题是要传递到 S，并且存在与该签名没有构造函数。试试这个

add(new JButton("Row-1, Col-1")); ---- line7 
add(new JButton("Row-1, Col-2")); ---- line8 
add(new JButton("Row-2, Col-1")); ---- line9 
add(new JButton("Row-2, Col-2")); ---- line10 
add(new JButton("Row-3, Col-1")); ---- line11 

使每个按钮标签的描述，而是用一个单一的String。