# New Technology

Trending Technology Machine Learning, Artificial Intelligent, Block Chain, IoT, DevOps, Data Science

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Operators
• Arithmetic Operators :  =, +, -, *, /, %
• Comparison Operator :  ==, !=, <, >, <=,  >=
• Boolean Operator :  &&, ||, !
• Bitwise Operator :  &, |, ^, ~, <<,  >>,
• Compound Operator : ++,  --,  +=,  -=, *=, /=, %=, |=, &=

Control Statement

If statement
•  if(condition){
Statements if the
condition is true ;
}

If... Else statement
•   If(condition) {
statement if the
condition is true ;
}
else{
Statements if the
condition is false;
}

If .... Elseif.....Else
•  If (condition1){
statements if the
condition1 is true;
}
else if (condition2){
Statements if the
condition1 is false
and condition2 is true;
}
else{
Statements if both the
condition are false;
}

Switch Case
• Switch(choice)

{
case opt1: statement_1;break;
case opt2: statement_2;break;
case opt3: statement_3;break;
.
.
.
case default: statement_default; break;
}

Conditional Operator.
• Val=(condition)?(statement1):(Statement2)

Loops

For loop
• for(initialize; condition;increment){

Statement till the condition is true;
}

While loop
• while(condition){
Statement till the condition is true;
}

Do... While loop
• do{

Statement till the condition is true;
} while(condition);

Nested loop : Calling a loop inside another loop

Infinite loop : Condition of the loop is always true, the loop will never terminate

Arrays
• Collection of elements having homogenous datatype that are stored in adjacent memory location.
• The conventional starting index is 0.
• Declaration of array :
<Datatype>array_name[size];
Ex: int arre[5];
• Alternative Declaration:

int arre[]={0,1,2,3,4};
int arre[5]={0,1,2}
• Multi-dimentional array Declaration :
<Datatype> array_name[n1] [n2] [n3]....;
Ex: int arre [row] [col] [height];

String

Array of characters with NULL as termination is termed as a String.

Declaration using Array:

char str[] = "ABCD";
char str[4];

• str[0]='A'
• str[0]='B'
• str[0]='C'
• str[0]='0'
Declaration using String Object:
• String str="ABC"

Functions of String Object :
• str.ToUpperCase() : change all the characters of str to upper case
• str.replace(str1,str2) : is str1 is the sub string then it will be replaced by str2
• str.length(): returns the length of the string without considering null