Conditional Statements

There are four conditional statements in Java

• if
• if---else
• Nested if...else
• Switch...case

If condition 

Example:

package LearnJava;

public class JavaBasics {

      

       public static void main(String args[])

       {

             

              int a = 1;

              int b =1;

             

              if(a==b)

              {

                     System.out.println("a and b are equal");

              }

             

       }

        

}

If - -else condition

Example:

package LearnJava;

public class JavaBasics {

      

       public static void main(String args[])

       {

             

        int a=30;
        int b=40;
      
        if (a>b) {
            System.out.println("a is greater than b");
        }
        else{
            System.out.println("b is greater than a");
        }
      
        //comparison operators:
        // < > <= >= == !=
      
        int c=20;
        int d=20;
        if(c==d) {
            System.out.println("a and b are equal");
        }else {
            System.out.println("a and b are not equal");
        }

             

       }

        

}

Nested if- -else condition 

Example:

package LearnJava;

public class JavaBasics {

      

       public static void main(String args[])

       {

             

       //write a logic to find out highest number
      
        int x=700;
        int y=900;
        int z=800;
      
        //nested if-else condition
      
        if(x>y & x>z) 
        {
            System.out.println("x is the highest");
        }
        else if(y>z)
        {
            System.out.println("y is the highest");
        }
        else 
        {
            System.out.println("z is the highest");
        }

                          

       }

        

}

Switch case condition

Example:

package LearnJava;

public class JavaBasics {

      

       public static void main(String args[])

       {

             

       int number =1;

      

       switch(number+1)

       {

       case 1 :

              System.out.println("Value of number is one");

       case 2 :

              System.out.println("Value of number is two");

       case 3 :

              System.out.println("Value of number is three");

       }

       default:
              System.out.println("not available");   

       }

        

}