資源簡(jiǎn)介
設(shè)計(jì)一個(gè)計(jì)算器,完成“+-x÷”運(yùn)算。選擇合理的布局方式,實(shí)現(xiàn)各按鈕的事件處理。
代碼片段和文件信息
import?javax.swing.Jframe;
import?javax.swing.JPanel;
import?javax.swing.JLabel;
import?javax.swing.JTextField;
import?javax.swing.JButton;
import?java.awt.event.ActionListener;
import?java.awt.event.ActionEvent;
public?class?TestComputer?extends?Jframe?implements?ActionListener{
?private?JTextField?op1;
?private?JTextField?op2;
?private?JTextField?result;
?private?JButton?add;
?private?JButton?del;
?private?JButton?mul;
?private?JButton?mod;
?public?TestComputer()?{
???
??setBounds(200?200?400?300);
??setResizable(false);
??getContentPane().setLayout(null);
???
??JPanel?panel?=?new?JPanel();
??panel.setBounds(33?25?176?215);
??getContentPane().add(panel);
??panel.setLayout(null);
???
??JLabel?label?=?new?JLabel(“\u64CD\u4F5C\u65701“);
??label.setBounds(1
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