回答編集履歴
2
もう一つ追加
test
CHANGED
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@@ -31,3 +31,25 @@
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31
31
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System.out.println(x==z); // true
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32
32
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33
33
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```
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34
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+
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35
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+
```Java
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36
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+
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37
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+
Long w = new Long(128);
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38
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+
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39
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+
Long x = 128l;
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40
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+
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41
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+
Long y = 128l;
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42
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+
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43
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+
long z = 128l;
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44
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+
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45
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+
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46
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+
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47
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+
System.out.println(w==x); // false
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48
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+
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49
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+
System.out.println(w==z); // true
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50
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+
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51
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System.out.println(x==y); // false
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52
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+
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53
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+
System.out.println(x==z); // true
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54
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+
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55
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+
```
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1
コード追加
test
CHANGED
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@@ -7,3 +7,27 @@
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7
7
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`entity.getId()==id`
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8
8
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9
9
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がほぼほぼfalseになるのでは?
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10
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+
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11
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+
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12
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+
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13
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+
```Java
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14
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+
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15
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+
Long w = new Long(2);
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16
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+
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17
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+
Long x = 2l;
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18
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+
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19
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Long y = 2l;
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20
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+
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21
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long z = 2l;
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22
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+
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23
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+
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24
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+
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25
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System.out.println(w==x); // false
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26
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+
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27
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System.out.println(w==z); // true
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28
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+
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29
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+
System.out.println(x==y); // true
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30
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+
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31
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+
System.out.println(x==z); // true
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32
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+
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33
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+
```
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