int a = 5000;float b = 13.65f;byte c = 0x4a;

public class Test{    public static void main(String args[]){      Integer x = 5;      x =  x + 10;      System.out.println(x);    }}

public class Test {      public static void main (String []args)      {          System.out.println("90 度的正弦值：" + Math.sin(Math.PI/2));          System.out.println("0度的余弦值：" + Math.cos(0));          System.out.println("60度的正切值：" + Math.tan(Math.PI/3));          System.out.println("1的反正切值： " + Math.atan(1));          System.out.println("π/2的角度值：" + Math.toDegrees(Math.PI/2));          System.out.println(Math.PI);      }  }

public class Main {     public static void main(String[] args) {       double[] nums = { 1.4, 1.5, 1.6, -1.4, -1.5, -1.6 };       for (double num : nums) {         test(num);       }     }       private static void test(double num) {       System.out.println("Math.floor(" + num + ")=" + Math.floor(num));       System.out.println("Math.round(" + num + ")=" + Math.round(num));       System.out.println("Math.ceil(" + num + ")=" + Math.ceil(num));     }   }