Java Conditional Statements

Java Conditional Statements   
Conditional statements are used to insert verification points in addition to for Error handling.

Two types of Conditional statements inward Java
1) if statement

2) switch statement
------------------------------
Types of Conditions
1) Single condition
Ex:

if (a > b) {
----
----

2) Compound status
Ex:

if ((a > b) && or || (a > c)) {
--------
----------

3) Nested Condition
if (a > b){}
 if (a < c) {}
  if (a < d) {
----
----
}
------------------------------
Usage of Conditional Statements
1) Executing a block of statements when status is true.
Syntax:
if (Condition) {
Statements
---------
---------
}

Example:public static void original (String [] args){
        int a, b;
        a =10;
        b =5;
       
        if (a > b) {
            System.out.println("A is a Big Nuber");
        }
------------------------------------
2) Executing a block of statements when chemical compound status is true
Syntax:
if ((condition) && (condition2)) {
Statements
----------
-----------
}

Example:int a, b, c = 2;
        a =10;
        b =5;
       
        if ((a > b) && (a > c)) {
            System.out.println("A is a Big Nuber");
        }
-------------------------------------------
3) Executing a block of statements when status is true. otherwise executing simply about other block of statements.
Syntax:
if (Condition) {
Statements
----------
--------
}
else {
statements
---------
--------
}

Example:
public static void original (String [] args){
        int a, b;
        a =10;
        b =50;
       
        if (a > b) {
            System.out.println("A is a Big Number");
        }
        else {
            System.out.println("B is a Big Number");
        }
-----------------------------------------
4) Decide amid several Alternates (else if structure)
Syntax:
if (condition) {
Statements
------
---------
}
else if (condition) {
Statements
------
---------
}
else if (condition) {
Statements
------
---------
}
else
{
statements
----------
--------
}

Example:
public static void original (String [] args){
        int a = -100;
               
        if ((a >= 1) && (a < 100)) {
            System.out.println("A is a Small Number");
        }
        else if ((a > 100) && (a <= 1000)) {
            System.out.println("A is a Medium Number");
            }
        else if (a > 1000) {
            System.out.println("A is a Big Number");
            }
        else
        {
            System.out.println("A is either Zero or negative value");
        }
--------------------------------------------       
5) Executing a block of statements when to a greater extent than than i status is truthful (Nested if).
Syntax:
if (condition) {}
 if (condition) {}
  if (condition) {
Statements
--------
---------
}
else
{
Statements
---------
---------
}

Example:
public static void original (String [] args){
        int a =10, b =7, c = 5, d = 13;
               
        if (a > b){}
          if (a > c) {}
           if (a > d){
               System.out.println("A is a Big Number");
           }
           else {
               System.out.println("A is Not a Big Number");
           }
---------------------------------------
6) Decide amid several alternates (using Switch instance structure).
Syntax:
switch (expression) {

case value:
Statements
-------
break;
case value:
Statements
-------
break;   
case value:
Statements
-------
break;
default
Statements
-------
------
}

Example:char shape = 'X';
       
        switch (grade){
       
        instance 'A':
            System.out.println ("Excellent");
            break;
        instance 'B':
            System.out.println ("Well Done");
            break;
           
        instance 'C':
            System.out.println ("Better");
            break;
        default:
            System.out.println("Invalid Grade");
                }
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