diff --git "a/47 \346\250\212\345\260\217\351\203\255/20230509 Java\351\235\242\345\257\271\345\257\271\350\261\241\345\274\202\345\270\270.md" "b/47 \346\250\212\345\260\217\351\203\255/20230509 Java\351\235\242\345\257\271\345\257\271\350\261\241\345\274\202\345\270\270.md"
new file mode 100644
index 0000000000000000000000000000000000000000..186797bfb8165dbd29954fef293fbef5d75ade44
--- /dev/null
+++ "b/47 \346\250\212\345\260\217\351\203\255/20230509 Java\351\235\242\345\257\271\345\257\271\350\261\241\345\274\202\345\270\270.md"	
@@ -0,0 +1,31 @@
+# 异常
+
+```java
+//两个数相加
+public class Main {
+    public static void main(String[] args){
+        while (true) {
+
+            try {
+                Scanner sc = new Scanner(System.in);
+                System.out.println("请输入整数1");
+                int I1 = sc.nextInt();
+                Scanner s = new Scanner(System.in);
+                System.out.println("请输入整数2");
+                int I2 = sc.nextInt();
+                int num=0;
+                if (I1>0 && I2>0){
+                    num=num+I1+I2;
+                    System.out.println("输入值为"+num);
+                    break;
+                }else if (I1<0 && I2<0){
+                    System.out.println("输入数字不能为负");
+                    break;
+                }
+            } catch (Exception e) {
+                System.out.println("输入类型错误");
+            }
+        }
+    }
+}
+```
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