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  1. import java.io.InputStreamReader;
  2. import java.util.ArrayList;
  3. import java.util.Iterator;
  4. import java.util.List;
  5.  
  6. public class DentakuExec {
  7. 	public static final String OP_ADD = "+";
  8. 	public static final String OP_SUB = "-";
  9. 	public static final String OP_MUL = "*";
  10. 	public static final String OP_DIV = "/";
  11. 	public static final String OP_MOD = "%";
  12.  
  13. 	public static void main(String[] args) {
  14. 		try {
  15. 			List<String> params = parse(new InputStreamReader(System.in));
  16.  
  17. 			Double n1 = new Double(params.get(0));
  18. 			params.remove(0);
  19.  
  20. 			for (Iterator<String> it = params.iterator(); it.hasNext();) {
  21. 				String param1 = it.next();
  22.  
  23. 				if (param1.equals(OP_ADD)) {
  24. 					n1 = Dentaku.Add(n1, new Double(it.next()));
  25. 				} else if (param1.equals(OP_SUB)) {
  26. 					n1 = Dentaku.Sub(n1, new Double(it.next()));
  27. 				} else if (param1.equals(OP_MUL)) {
  28. 					n1 = Dentaku.Mul(n1, new Double(it.next()));
  29. 				} else if (param1.equals(OP_DIV)) {
  30. 					n1 = Dentaku.Div(n1, new Double(it.next()));
  31. 				} else if (param1.equals(OP_MOD)) {
  32. 					n1 = Dentaku.Mod(n1, new Double(it.next()));
  33. 				} else {
  34. 					throw new Exception("OP_ERROR");
  35. 				}
  36. 			}
  37.  
  38. 			System.out.println("result=" + n1);
  39. 		} catch (Throwable e) {
  40. 			e.printStackTrace();
  41. 		}
  42. 	}
  43.  
  44. 	private static List<String> parse(InputStreamReader reader) throws Exception {
  45. 		List<String> params = new ArrayList<String>();
  46.  
  47. 		StringBuffer sb = new StringBuffer();
  48. 		int i = -1;
  49.  
  50. 		loop: while ((i = reader.read()) != -1) {
  51. 			switch (i) {
  52. 			case '\r':
  53. 			case '\n':
  54. 				break loop;
  55. 			case ' ':
  56. 			case '　':
  57. 			case ',':
  58. 			case '，':
  59. 				break;
  60. 			case '0':
  61. 			case '1':
  62. 			case '2':
  63. 			case '3':
  64. 			case '4':
  65. 			case '5':
  66. 			case '6':
  67. 			case '7':
  68. 			case '8':
  69. 			case '9':
  70. 				sb.append(i - '0');
  71. 				break;
  72. 			case '０':
  73. 			case '１':
  74. 			case '２':
  75. 			case '３':
  76. 			case '４':
  77. 			case '５':
  78. 			case '６':
  79. 			case '７':
  80. 			case '８':
  81. 			case '９':
  82. 				sb.append(i - '０');
  83. 				break;
  84. 			case '.':
  85. 			case '．':
  86. 				sb.append(".");
  87. 				break;
  88. 			case '+':
  89. 			case '＋':
  90. 				if (sb.length() == 0) {
  91. 					sb.append('0');
  92. 				}
  93. 				params.add(sb.toString());
  94. 				sb = new StringBuffer();
  95. 				params.add(OP_ADD);
  96. 				break;
  97. 			case '-':
  98. 			case '－':
  99. 				if (sb.length() == 0) {
  100. 					sb.append('0');
  101. 				}
  102. 				params.add(sb.toString());
  103. 				sb = new StringBuffer();
  104. 				params.add(OP_SUB);
  105. 				break;
  106. 			case '*':
  107. 			case '＊':
  108. 			case '×':
  109. 				params.add(sb.toString());
  110. 				sb = new StringBuffer();
  111. 				params.add(OP_MUL);
  112. 				break;
  113. 			case '/':
  114. 			case '／':
  115. 			case '÷':
  116. 				params.add(sb.toString());
  117. 				sb = new StringBuffer();
  118. 				params.add(OP_DIV);
  119. 				break;
  120. 			case '%':
  121. 			case '％':
  122. 				params.add(sb.toString());
  123. 				sb = new StringBuffer();
  124. 				params.add(OP_MOD);
  125. 				break;
  126. 			default:
  127. 				throw new Exception("PARSE_ERROR code=" + i);
  128. 			}
  129. 		}
  130.  
  131. 		if (sb.length() != 0) {
  132. 			params.add(sb.toString());
  133. 		}
  134.  
  135. 		return params;
  136. 	}
  137. }
Compilation error #stdin compilation error #stdout 0s 0KB
comments (?)
stdin
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Standard input is empty
compilation info 
Main.java:6: error: class DentakuExec is public, should be declared in a file named DentakuExec.java
public class DentakuExec {
       ^
Main.java:24: error: cannot find symbol
					n1 = Dentaku.Add(n1, new Double(it.next()));
					     ^
  symbol:   variable Dentaku
  location: class DentakuExec
Main.java:26: error: cannot find symbol
					n1 = Dentaku.Sub(n1, new Double(it.next()));
					     ^
  symbol:   variable Dentaku
  location: class DentakuExec
Main.java:28: error: cannot find symbol
					n1 = Dentaku.Mul(n1, new Double(it.next()));
					     ^
  symbol:   variable Dentaku
  location: class DentakuExec
Main.java:30: error: cannot find symbol
					n1 = Dentaku.Div(n1, new Double(it.next()));
					     ^
  symbol:   variable Dentaku
  location: class DentakuExec
Main.java:32: error: cannot find symbol
					n1 = Dentaku.Mod(n1, new Double(it.next()));
					     ^
  symbol:   variable Dentaku
  location: class DentakuExec
6 errors
stdout
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Standard output is empty
https://ideone.com/eS5N7R
language:
Java (HotSpot 12)
created:
7 years ago
visibility:
public

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