Control statements

                                      Control statements

Control statements :-

A control statement works as a determiner for deciding the next task of the other statements whether to execute or not.

if Statement :
Simple if statement is the basic of decision-making statements in Java. It decides if certain amount of code should be executed based on the condition.

Syntax:

if (condition) {
         Statemen 1; //if condition becomes true then this will be executed
}
Statement 2; //this will be executed irrespective of condition becomes true or false

example :
class IfStatement {
    public static void main(String[] args) {
    int number = 10;
    if (number > 0) {
    System.out.println("Number is positive.");
    }
    System.out.println("This statement is always executed.");
    }
}


if…else Statement :
In if…else statement, if condition is true then statements in if block will be executed but if it comes out as false then else block will be executed.

Syntax: 

if (condition) {
         Statemen 1; //if condition becomes true then this will be executed
}
else
{
        Statemen 1; //if condition becomes false then this will be executed
}

Example :

class IfElse {

   public static void main(String[] args) { 

  

      int number = 10;

      if (number > 0) {

         System.out.println("Number is positive.");

      }

      else {

         System.out.println("Number is not positive.");

      }

      System.out.println("This statement is always executed.");

   }

}

Assignments :-

If:-

1. Write a   program that accepts two integer values from the user and return the larger values.

2. Write a   program to compare two numbers use operators like <, >, <=,>=, ==, !=

Input Data:

Input first integer: 25

Input second integer: 39

Expected Output

25 != 39                                                                          

25 < 39                                                                           

25 <= 39

3. Check number is even or odd

4. Program to find Largest of three numbers

5. Write a   program to calculate the sum of two integers and return true if the sum is equal to a third integer.  

Input the first number : 5                                             

Input the second number: 10                                            

Input the third number : 15  

Sample Output:                                          

The result is: true

6. Write a   program that accepts three integers from the user and return true if two or more of them (integers ) have the same rightmost digit. The integers are non-negative.  

Input the first number : 5                                             

Input the second number: 10                                            

Input the third number : 15  

Sample Output:

The result is: true

7. Write a   program to check whether an given integer is a power of 4 or not.  

Given num = 64, return true. Given num = 6, return false.

8. Check leap year 

9. Input character is vowel or consonant

10. Given number is positive or negative 

11. H-  Program to swap two numbers using bitwise operator

12. H-  Program to find smallest of three numbers using ternary operator

13. H-   Program to find largest of three numbers using ternary operator

14. display Student Grades