回答編集履歴
1
Thread 版を追加
test
CHANGED
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@@ -111,3 +111,117 @@
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111
111
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}
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112
112
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113
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```
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114
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115
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116
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117
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別スレッドで非同期処理をということですが, ネタとしては意味が無いように思います.
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118
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119
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どちらかからの課題なのでしょうか.
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120
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121
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```java
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122
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123
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import java.io.IOException;
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124
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125
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import java.util.Random;
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126
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127
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128
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129
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class RandomTimer extends Thread {
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131
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private long wait;
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133
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private int targetCode;
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135
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private long reponseTime;
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136
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RandomTimer(int waitmax, int targetCode) {
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138
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139
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Random random = new Random();
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140
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wait = random.nextInt(waitmax);
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142
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this.targetCode = targetCode;
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144
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145
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}
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146
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147
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public void run() {
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148
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149
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try {
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151
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waitTarget(targetCode);
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152
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153
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Thread.sleep(wait);
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154
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155
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clearStdIn();
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156
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157
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System.out.println("*");
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158
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159
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long startTime = System.currentTimeMillis();
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161
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waitTarget(targetCode);
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162
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reponseTime = System.currentTimeMillis() - startTime;
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164
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165
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} catch (IOException | InterruptedException e) {
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166
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e.printStackTrace();
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168
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169
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}
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170
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171
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}
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172
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173
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public long getReponseTime() {
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174
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return reponseTime;
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177
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}
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179
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//標準入力のゴミを削除
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180
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void clearStdIn() throws IOException {
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while(System.in.available() != 0) System.in.read();
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184
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}
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186
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//標準入力から targetCode が入力されるまで待つ
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188
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void waitTarget(int targetCode) throws IOException {
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190
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while(System.in.read() != targetCode);
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193
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}
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194
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195
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}
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196
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197
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public class Quickpress {
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198
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199
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public static void main(String[] args) throws IOException, InterruptedException {
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200
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int targetCode = getBr();
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202
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System.out.println("Hit enter to start:");
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204
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205
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RandomTimer randomTimer = new RandomTimer(5000, targetCode);
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randomTimer.start();
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randomTimer.join();
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System.out.println("タイム: "+randomTimer.getReponseTime()+ "[ms]");
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212
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213
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}
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214
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215
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//改行コードを取得
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216
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217
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static int getBr() {
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218
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219
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String br = System.getProperty("line.separator");
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220
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return br.getBytes()[0];
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222
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223
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}
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224
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225
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}
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226
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```
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