Initial commit

Experiment/graph/Exp6/ManyException.mermaid

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+graph TD
+    A[开始] --> B{第一个 try 块};
+    B --> C{计算 result = 8 / 0};
+    C -- ArithmeticException --> D[捕获 ArithmeticException];
+    D --> E[打印 “算术异常”];
+    E --> F{第二个 try 块};
+    C --> F;
+    F --> G{获取 null 字符串的长度};
+    G -- NullPointerException --> H[捕获 NullPointerException];
+    H --> I[打印 “空指针异常”];
+    I --> J{第三个 try 块};
+    G --> J;
+    J --> K{创建大小为4的float数组 arr};
+    K --> L{"访问 arr[4]"};
+    L -- ArrayIndexOutOfBoundsException --> M[捕获 ArrayIndexOutOfBoundsException];
+    M --> N[打印 “数组下标越界异常”];
+    N --> O{第四个 try 块};
+    L --> O;
+    O --> P{将字符串 '23U' 转换为 double};
+    P -- NumberFormatException --> Q[捕获 NumberFormatException];
+    Q --> R[打印 “字符串转换异常”];
+    R --> S[结束];
+    P --> S;