Switch Statement syntax

the syntax of Switch Statement:

switch(value)
{
case value1:
    statement 1;
  break;
case value 2:
   statement 2;
   break;
 case value n:
   statement ...
   break;
default:
   statement;
}

i hope you understand this syntax in switch statement to create running program.

}

Switch Case Statement

Switch Case Statement is a type of selection control statement that exists in most modern imperative programming languages (e.g., Pascal, C, C++, C#, and Java). Its purpose is to allow the value of a variable or expression to control the flow of program execution via a multiway branch (or "goto", one of several labels). The main reasons for using a switch include improving clarity, by reducing otherwise repetitive coding, and (if the heuristics permit), offering the potential of faster execution through compiler optimization. In some programming languages, a statement that is syntactically different but conceptually the same as the switch statement is known as a case statement, select statement or inspect instruction.

Using syst.out.print sample program

This program will show how to used system.out.print to show a message or output of the program.
this is used to show ther output in screen.

here is a sample program.

import java.io.*;

public class sampleprogram
{
public static void main(String args[])
{
System.out.println("Hello World");
System.out.println("I am Jaypee Cezar");
System.out.println("I am a programmer");
System.out.print("I hope you learn in my blog");
}
}

here is the output :
Hello World
I am Jaypee Cezar
I am a programmer
I hope you learn in blog

Relational Operators in programming

This operator used in programming to make a decision making. this operator is answer by true or false or yes or no only. the program execute depending on the result of operations.

These are the Relational Operators
>          greater than
>=       greater than or equal
<         less than
<=      less than or equal
==      equal
!=       not equal

Java Operators

Programming Operators are use in computing the numbers using programming.

here are the the operators used in programming.

   name         Symbols
1. Addition                    +
2. Subtraction               -
3. Multiplication          *
4. Division                    /
5. Modulo                   %           - this operator used to get the remainder

Escape sequence in programming

This are the common escape sequences in programming.

\n     - newline.
\t      - Horizontal Tab
\r     - Carriage return
\\     - Backslash
\"     - Double Quote

IF ELSE statement sample program

This program will compute the 3 grades and get the average. the program will show a message "Your Passed" if the average is 75 above. else the program will show a message " Your Failed" if the average is Below 75.

here is the program.

import java.io.*;

public class ComputeAverage
{
public static void main(String args[])
{
//declaration of variables
int math=90;
int PE=90;
int prog=95;
int ave=0;

//Compute the average

ave=(math + PE + prog)/3;

//display the average
System.out.print("Your average is:" + ave);


//checking the average if it is 75 above or below 75 using if statement

if(ave>=75)
{
System.out.print("Your Passed");
}
else
{
System.out.print("Your Failed");
}

}
}