小小java计算器_0.1 版本

package com.doucity.xiaoxiao.matrix.m; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.util.regex.Matcher; import java.util.regex.Pattern; import javax.swing.JButton; import javax.swing.JOptionPane; import com.doucity.xiaoxiao.matrix.v.Matrix; public class Operation implements ActionListener { Matrix m = null; public void actionPerformed(ActionEvent e) { m.getFileC().setText("xiao_xiao.txt"); //分割符 //String //小数位数 String text_bit = m.getText_bit().getText(); //文件A String fileA = m.getFileA().getText(); //规格 String fileA_type_0 = m.getFileA_type_0().getText(); String fileA_type_1 = m.getFileA_type_1().getText(); //文件B String fileB = m.getFileB().getText(); //规格 String fileB_type_0 = m.getFileB_type_0().getText(); String fileB_type_1 = m.getFileB_type_1().getText(); //参数判断 if (!check()) { return; } //根据不同的操作会对规格做不同的判断 String buttonSource = ((JButton) e.getSource()).getText(); if (buttonSource.equals("A+B")) { if (!fileA_type_0.equals(fileB_type_0) || !fileA_type_1.equals(fileB_type_1)) { JOptionPane.showMessageDialog(null, "规格填写错误，做矩阵加法时，矩阵A的行(列)必须等于矩阵B的行(列)", "提示", JOptionPane.ERROR_MESSAGE); return ; } } else if (buttonSource.equals("A-B")) { if (!fileA_type_0.equals(fileB_type_0) || !fileA_type_1.equals(fileB_type_1)) { JOptionPane.showMessageDialog(null, "规格填写错误，做矩阵减法时，矩阵A的行(列)必须等于矩阵B的行(列)", "提示", JOptionPane.ERROR_MESSAGE); return ; } } else if (buttonSource.equals("A*B")) { if (!fileA_type_1.equals(fileB_type_0)) { JOptionPane.showMessageDialog(null, "规格填写错误，做矩阵乘法时，矩阵A的列必须等于矩阵B的行", "提示", JOptionPane.ERROR_MESSAGE); return ; } } //读取文件A，并且做简单的验证 double[][] a = null; try { a = new ReadMatix().read(fileA, "\t", Integer.parseInt(fileA_type_0), Integer.parseInt(fileA_type_1)); } catch (Exception e1) { e1.printStackTrace(); JOptionPane.showMessageDialog(null, "读取文件A时出错，错误为：" + e1.getMessage(), "提示", JOptionPane.ERROR_MESSAGE); return ; } if (a == null) { JOptionPane.showMessageDialog(null, "读取文件A时出错", "提示", JOptionPane.ERROR_MESSAGE); return; } double[][] b = null; try { b = new ReadMatix().read(fileB, "\t", Integer.parseInt(fileB_type_0), Integer.parseInt(fileB_type_1)); } catch (Exception e1) { e1.printStackTrace(); JOptionPane.showMessageDialog(null, "读取文件B时出错，错误为：" + e1.getMessage(), "提示", JOptionPane.ERROR_MESSAGE); return ; } if (b == null) { JOptionPane.showMessageDialog(null, "读取文件B时出错", "提示", JOptionPane.ERROR_MESSAGE); return; } String fileC = fileB.replace("\\", "/"); fileC = fileC.substring(0, fileC.lastIndexOf("/")) + "/xiao_xiao.txt"; m.getFileC().setText(fileC); m.getFileC().setToolTipText(fileC); try { //根据不同的按钮操作调用不同的操作 if (buttonSource.equals("A+B")) { new OperationsMatix().plus(fileC, "\t",text_bit,a, b); } else if (buttonSource.equals("A-B")) { new OperationsMatix().sub(fileC, "\t",text_bit,a, b); } else if (buttonSource.equals("A*B")) { new OperationsMatix().multi(fileC, "\t",text_bit,a, b); } JOptionPane.showMessageDialog(null, "计算完成，结果保存到文件中：\n" + fileC, "提示", JOptionPane.ERROR_MESSAGE); return; } catch (Exception e1) { // TODO Auto-generated catch block e1.printStackTrace(); JOptionPane.showMessageDialog(null, "计算过程中出错，错误为：" + e1.getLocalizedMessage(), "提示", JOptionPane.ERROR_MESSAGE); return; } } public Operation() { } public Operation(Matrix m) { this.m = m; } public boolean check() { //文件A String fileA = m.getFileA().getText(); //文件A规格 String fileA_type_0 = m.getFileA_type_0().getText(); String fileA_type_1 = m.getFileA_type_1().getText(); if (fileA == null || fileA.equals("")) { JOptionPane.showMessageDialog(null, "请选择矩阵A", "提示", JOptionPane.ERROR_MESSAGE); return false; } if (fileA_type_0 == null || fileA_type_0.equals("")) { JOptionPane.showMessageDialog(null, "请填写矩阵A的规格", "提示", JOptionPane.ERROR_MESSAGE); return false; } if (!isNumber_1_9(fileA_type_0)) { JOptionPane.showMessageDialog(null, "矩阵A的规格必须是大于0的整数", "提示", JOptionPane.ERROR_MESSAGE); return false; } if (fileA_type_1 == null || fileA_type_1.equals("")) { JOptionPane.showMessageDialog(null, "请填写矩阵A的规格", "提示", JOptionPane.ERROR_MESSAGE); return false; } if (!isNumber_1_9(fileA_type_1)) { JOptionPane.showMessageDialog(null, "矩阵A的规格必须是大于0的整数", "提示", JOptionPane.ERROR_MESSAGE); return false; } //文件B String fileB = m.getFileB().getText(); //文件B规格 String fileB_type_0 = m.getFileB_type_0().getText(); String fileB_type_1 = m.getFileB_type_1().getText(); if (fileB == null || fileB.equals("")) { JOptionPane.showMessageDialog(null, "请选择矩阵B", "提示", JOptionPane.ERROR_MESSAGE); return false; } if (fileB_type_0 == null || fileB_type_0.equals("")) { JOptionPane.showMessageDialog(null, "请填写矩阵B的规格", "提示", JOptionPane.ERROR_MESSAGE); return false; } if (!isNumber_1_9(fileB_type_0)) { JOptionPane.showMessageDialog(null, "矩阵B的规格必须是大于0的整数", "提示", JOptionPane.ERROR_MESSAGE); return false; } if (fileB_type_1 == null || fileB_type_1.equals("")) { JOptionPane.showMessageDialog(null, "请填写矩阵B的规格", "提示", JOptionPane.ERROR_MESSAGE); return false; } if (!isNumber_1_9(fileB_type_1)) { JOptionPane.showMessageDialog(null, "矩阵B的规格必须是大于0的整数", "提示", JOptionPane.ERROR_MESSAGE); return false; } //小数位数 String text_bit = m.getText_bit().getText(); if (text_bit == null || text_bit.equals("")) { JOptionPane.showMessageDialog(null, "请填写结果文件的小数位数", "提示", JOptionPane.ERROR_MESSAGE); return false; } if (!isNumber_0_9(text_bit)) { JOptionPane.showMessageDialog(null, "结果文件的小数位数必须是大于等于0的整数", "提示", JOptionPane.ERROR_MESSAGE); return false; } return true; } /* * 大于0的整数 */ public boolean isNumber_1_9(String str) { Pattern pattern = Pattern.compile("[1-9][0-9]{0,}"); Matcher matcher = pattern.matcher((CharSequence)str); boolean result = matcher.matches(); return result; } /* * 大于等于0的整数 */ public boolean isNumber_0_9(String str) { Pattern pattern = Pattern.compile("[0-9]{1,}"); Matcher matcher = pattern.matcher((CharSequence)str); boolean result = matcher.matches(); return result; } }