add max and find

data/1.Java初阶/6.Java中的运算符/1.比较运算符/config.json

@@ -2,5 +2,5 @@
   "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
   "keywords": ["大于", "小于", "等于", "比较", "不等于"],
   "children": [],
-  "export": ["find.json"]
+  "export": ["find.json", "max.json"]
 }
\ No newline at end of file

data/1.Java初阶/6.Java中的运算符/1.比较运算符/max.json

+{
+    "type": "code_options",
+    "author": "刘鑫",
+    "source": "max.md",
+    "exercise_id":"5025886554e5470e82710ed84735e419"
+}
\ No newline at end of file

data/1.Java初阶/6.Java中的运算符/1.比较运算符/max.md

+# 查找最大值
+
+下面哪个函数能够从数组中找到最大值(如果数组为空，返回 0)？
+
+## aop
+
+### before
+
+```java
+int[] array = new int[]{1, 28766, 3, 4, 75, 32421, 12, 3232, 932};
+```
+
+
+### after
+
+
+
+## 答案
+
+```java
+
+int max(int[] array){
+    int result = 0;
+    for(int i=0;i<array.length;i++){
+        int value = array[i];
+        if(value > result){
+            result = value;
+        }
+    }
+    return value;
+}
+
+```
+
+## 选项
+
+### 符号用反
+
+```java
+
+int max(int[] array){
+    int result = 0;
+    for(int i=0;i<array.length;i++){
+        int value = array[i];
+        if(value < result){
+            result = value;
+        }
+    }
+    return result;
+}
+
+```
+
+### final 无法修改
+
+```java
+
+int max(int[] array){
+    final int result = 0;
+    for(int i=0;i<array.length;i++){
+        int value = array[i];
+        if(value > result){
+            result = value;
+        }
+    }
+    return result;
+}
+
+```
+
+### 错用比较运算符
+
+```java
+
+int max(int[] array){
+    final int result = 0;
+    for(int i=0;i<array.length;i++){
+        int value = array[i];
+        if(value > result){
+            result == value;
+        }
+    }
+    return result;
+}
+
+```
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