sj.java

sj.java

@@ -0,0 +1,32 @@
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package calculator;
+
+import java.util.*;
+public class sj {
+
+    
+    public sj() {
+       Scanner inScanner=new Scanner(System.in);
+			System.out.print("请输入一个运算（单位为度）:");
+			int a=inScanner.nextInt();
+                        System.out.print("接下来摁1是sin函数，2是cos函数，3是tan函数");
+                        int y=inScanner.nextInt();
+                      if(y==1){
+			double x = Math.toRadians(a);
+			System.out.println(Math.sin(x));
+                      }
+                      if(y==2) {
+                          double b = Math.toRadians(a);
+                        System.out.println(Math.cos(b));
+                      }
+                       if(y==3){
+		        double c = Math.toRadians(a);
+                        System.out.println(Math.tan(c));
+                            
+                      }
+    }
+}