10 Java Tutorial - Operators Logical Operator - Study Viral

10 Java Tutorial - Operators Logical Operator - Study Viral


Logical Operators are used when we want to check multiple conditions together.The logical && operator doesn't check second condition if first condition is false. It checks second condition only if first one is true.
The logical || operator doesn't check second condition if first condition is true. It checks second condition only if first one is false.

Arithmetic Operators are those operators which can to some mathematical work.

Symbol	Description
&&	Logical AND
||	Logical OR

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09 Java Tutorials - Operators - Relational Operators - Study Viral

09 Java Tutorials - Operators - Relational Operators - Study Viral

A relational operator is a programming language construct or operator that tests or defines some kind of relation between two entities.
The relational operators are < , > , <= , >= , == , and !=.

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08 Java Tutorials Operators - Arithmetic Operators in Java - Study Viral

08 Java Tutorials Operators - Arithmetic Operators  in Java - Study Viral

Operators are special symbols (characters) that carry out operations on operands (variables and values).
For Examples c = a + b   Where + symbol is operator and a, b are operands.


Arithmetic Operators are those operators which can to some mathematical work.

Symbol	Description
+	Addition
-	Subtraction
*	Multiplication
/	Division
%	Modulus

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07 Java Tutorials - Type Conversion in Java - Study Viral

07 Java Tutorials - Type Conversion in Java - Study Viral

Type Conversion is changing of one data type variable to other data type variable.
It can be lower data type to higher data type which known as Implicit Casting OR Widening Casting
OR Automatic Type Conversion.

byte ----> short ----> int -----> long -----> float -----> double


Also higher data type to lower data type is known as Explicit Type Conversion OR Narrowing Type Conversion.

byte <---- short <---- int <----- long <----- float <----- double
==============================================

class TypeConversion{
    public static void main(String []args){
        byte a = 126;
        System.out.println("byte = "+a);
        short b = a;
        System.out.println("short = "+b);
        long c = b;
        System.out.println("long = "+c);
       
        float d = c;
        System.out.println("float = "+d);
       
        d = d+0.254f;
        System.out.println("changed float = "+d);
       
        c = (long)d;
        System.out.println("long = "+c);
        c = c+126;
        System.out.println("long = "+c);
        a = (byte)c;
        System.out.println("byte = "+a);
       
    }
}

 Output :

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06 Java Tutorials - Variables and Data Type in Java - Study Viral

06 Java Tutorials - Variables and Data Type in Java - Study Viral


A variable is a named memory location that you can use to store a value. Also the value of variable can change during the execution of program.

Data type is a special keyword used to allocate sufficient memory space for the data, in other words Data type is used for representing the data in main memory (RAM) of the computer.
 

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05 Java Tutorial - Java Tokens - Study Viral

05 Java Tutorial - Java Tokens - Study Viral

What is Java Token ?

A token is the smallest element of a program that is understandable by  the java compiler.

These tokens define the structure of the Java language.

 

Types of Java Token ?

·        Identifiers,  Keywords,  Literals,  Operators,  Separators

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