Java Tutorial - 17 - If else Statement - Study Viral

Java Tutorial - 17 - If else Statement - Study Viral

Decision Making Statements (if-else)

The if-then statement is the most simple control flow statements. It helps your program to execute a certain block of code only if a particular test evaluates to true.
Type of if-else

if Statement
if else Statement
if else if Statement
Nested if - else 

===================================

class DecisionMaking{
    public static void main(String []args){
   
        if(true){
            System.out.println("Yes its true");
        }
        System.out.println("Out side if ");
   
        if(false){
            System.out.println("Yes its again true");
        System.out.println("out side if");
        }     
    }
}

==========================================

class DecisionMaking{
    public static void main(String []args){
       
        int a = 10;
        int b = 20;
        boolean bb = true;
        Boolean bool = true;
                   
        if(bool){
            System.out.println("Wow if can accept Wrapper Class object"); 
        } else if((a>b) && bb){
            System.out.println("Yes its true");
            System.out.println("Yes a > b");
        }else{
            System.out.println("Yes its else part");
        }
        System.out.println("From Outside");   
    }
} 

=================================================

class DecisionMaking{
    public static void main(String []args){
        int a = 10;
        int b = 20;
        boolean bb = true;
        Boolean bool = new Boolean(false); //Wrapper Class Object
        if(bool){
            System.out.println("Wow if can accept Wrapper Class object");
        } else if((a<b) && bb){
            System.out.println("Yes its true");
            System.out.println("Yes a > b");
        }else{
            System.out.println("Yes its else part");
        }
        System.out.println("From Outside");     
    }
}

Read More

Java Tutorial 16 - Command Line Arguments - Study Viral 

This video show you the use of Command Line Arguments with some Wrapper Class functions like parseInt(), parseDouble(), etc.
Command Line arguments are used to pass String values to Java programs at runtime.

www.studyviral.in

info@studyviral.in

class CommandLine{
 //www.studyviral.in
 public static void main(String []studyviral){
  String a  = studyviral[0];
  String b = studyviral[1];
  
  System.out.println(a);
  System.out.println(b);
  System.out.println(a+b);
  /*int c = Integer.parseInt(a);
  int d = Integer.parseInt(b);
  System.out.println(c+d);
  */
  double c = Double.parseDouble(a);
  double d = Double.parseDouble(b);
  System.out.println(c+d);
 }
}

Read More

Java Tutorial -15 Operators - Conditional Operator - Study Viral

www.Studyviral.in

Conditional operator (?:) operates on three operands.

The symbol "?" placed between the first and the second operand , and " : " is inserted between the second and third operand.

Result = Expr1  ?  Expr2  :  Expr3 ;

If expr1 has value true, the operator returns a result expr2 .
If expr1 has value false, the operator returns a result expr3 . 

www.studyviral.in 

info@studyviral.in 

Read More

Java Tutorial 14 - Operators - Unary Operator - Study Viral

 Java Tutorial 14 - Operators - Unary Operator - Study Viral

The unary operators works only on single operand. They perform various operations such as incrementing/decrementing a value by one, negating an expression, or inverting the value of a boolean.

+ Unary plus operator
- Unary minus operator
++ Increment operator
-- Decrement operator
! Logical Not operator
~ Complement operator

++var  Pre-Increment
--var Pre-Decrement
var++ Post-Increment
var-- Post-Decrement

www.StudYViraL.in
info@studyviral.in

Read More

Java Tutorial - 13 Operators Shift Operator - Study Viral

Java Tutorial - 13 Operators Shift Operator - Study Viral

The Java programming language also provides operators that perform bitwise and bit shift operations on integral type values.

Symbol	Description
<<	Left Shift Operator
>>	Right Shift Operator
>>>	Right Shift Operator (With Zero Filling)

YouTube Link :: Java Tutorial - Study Viral

For Suggestions :: info@studyviral.in

Read More

12 Java Tutorial - Operators - Assignment Operator - Study Viral

12 Java Tutorial - Operators - Assignment Operator - Study Viral

The assignment operator (=) is the most commonly used binary operator in Java.
It evaluates the operand on the right hand side and then assigns the resulting value to a variable on the left hand side.
This video also show the use of Compound Assignment Operators like  += , -= , *=, /= , %=.

For Suggestions Email at  info@studyviral.in

Read More

11 Java Tutorial - Operators - Bitwise Operators - Study Viral

11 Java Tutorial - Operators - Bitwise Operators - Study Viral

Bitwise Operators are used to control values of primitive data-types.

Symbol	Description
&	Bitwise AND
|	Bitwise Inclusive OR
^	Bitwise Exclusive OR

For Suggestions Email at  info@studyviral.in 

Read More