Java 实例 找到三个数字中最大的一个

在这里，我们将编写两个 java 程序来查找三个数字中最大的程序。 1）使用if-else..if2）使用嵌套的If

示例 1：使用if-else..if查找三个数字中的最大数字

public class JavaExample{

  public static void main(String[] args) {

      int num1 = 10, num2 = 20, num3 = 7;

      if( num1 >= num2 && num1 >= num3)
          System.out.println(num1+" is the largest Number");

      else if (num2 >= num1 && num2 >= num3)
          System.out.println(num2+" is the largest Number");

      else
          System.out.println(num3+" is the largest Number");
  }
}

输出：

20 is the largest Number

示例 2：使用嵌套if在三个数字中查找最大数字

public class JavaExample{

   public static void main(String[] args) {

      int num1 = 10, num2 = 20, num3 = 7;

      if(num1 >= num2) {

      if(num1 >= num3)
        /* This will only execute if conditions given in both
         * the if blocks are true, which means num1 is greater
         * than num2 and num3
         */
        System.out.println(num1+" is the largest Number");
      else
            /* This will only execute if the condition in outer if
         * is true and condition in inner if is false. which
         * means num1 is grater than num2 but less than num3.
         * which means num3 is the largest
         */
        System.out.println(num3+" is the largest Number");
      } 
      else {

      if(num2 >= num3)
        /* This will execute if the condition in outer if is false
         * and inner if is true which means num3 is greater than num1
         * but num2 is greater than num3\. That means num2 is largest
         */
        System.out.println(num2+" is the largest Number");
      else
        /* This will execute if the condition in outer if is false
         * and inner if is false which means num3 is greater than num1
         * and num2\. That means num3 is largest
         */
        System.out.println(num3+" is the largest Number");
      }
   }
}

输出：

20 is the largest Number