1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 | <span class="kwd">class</span><span class="pln"> </span><span class="typ">User</span><span class="pln"> </span><span class="pun">{</span><span class="pln"> </span><span class="typ">String</span><span class="pln"> name</span><span class="pun">;</span><span class="pln"> </span><span class="kwd">int</span><span class="pln"> score</span><span class="pun">;</span><span class="pln"> </span><span class="kwd">static</span><span class="pln"> </span><span class="kwd">int</span><span class="pln"> count </span><span class="pun">=</span><span class="pln"> </span><span class="lit">0</span><span class="pun">;</span><span class="pln"> </span><span class="typ">User</span><span class="pun">(</span><span class="typ">String</span><span class="pln"> name</span><span class="pun">,</span><span class="pln"> </span><span class="kwd">int</span><span class="pln"> score</span><span class="pun">)</span><span class="pln"> </span><span class="pun">{</span><span class="pln"> </span><span class="kwd">this</span><span class="pun">.</span><span class="pln">name </span><span class="pun">=</span><span class="pln"> name</span><span class="pun">;</span><span class="pln"> </span><span class="kwd">this</span><span class="pun">.</span><span class="pln">score </span><span class="pun">=</span><span class="pln"> score</span><span class="pun">;</span><span class="pln"> </span><span class="typ">User</span><span class="pun">.</span><span class="pln">count</span><span class="pun">++;</span><span class="pln"> </span><span class="pun">}</span><span class="pln"></span><span class="pun">}</span><span class="pln"></span><span class="kwd">public</span><span class="pln"> </span><span class="kwd">class</span><span class="pln"> </span><span class="typ">MyApp</span><span class="pln"> </span><span class="pun">{</span><span class="pln"> </span><span class="kwd">public</span><span class="pln"> </span><span class="kwd">static</span><span class="pln"> </span><span class="kwd">void</span><span class="pln"> main</span><span class="pun">(</span><span class="typ">String</span><span class="pun">[]</span><span class="pln"> args</span><span class="pun">)</span><span class="pln"> </span><span class="pun">{</span><span class="pln"> </span><span class="com">// int count = 0;</span><span class="pln"> </span><span class="typ">User</span><span class="pln"> user1 </span><span class="pun">=</span><span class="pln"> </span><span class="kwd">new</span><span class="pln"> </span><span class="typ">User</span><span class="pun">(</span><span class="str">"Taro"</span><span class="pun">,</span><span class="pln"> </span><span class="lit">70</span><span class="pun">);</span><span class="pln"> </span><span class="com">// count++;</span><span class="pln"> </span><span class="typ">User</span><span class="pln"> user2 </span><span class="pun">=</span><span class="pln"> </span><span class="kwd">new</span><span class="pln"> </span><span class="typ">User</span><span class="pun">(</span><span class="str">"Jiro"</span><span class="pun">,</span><span class="pln"> </span><span class="lit">80</span><span class="pun">);</span><span class="pln"> </span><span class="com">// count++;</span><span class="pln"> </span><span class="com">// System.out.println(count);</span><span class="pln"> </span><span class="typ">System</span><span class="pun">.</span><span class="kwd">out</span><span class="pun">.</span><span class="pln">println</span><span class="pun">(</span><span class="typ">User</span><span class="pun">.</span><span class="pln">count</span><span class="pun">);</span><span class="pln"> </span><span class="pun">}</span><span class="pln"></span><span class="pun">}</span><span class="pln"></span> |
