Java program using if, else if, else

public class ifElseIf

{

public static void main (String args[])

{

int marks = 90;

if (marks <50)

{

System.out.println(" Fail ");

}

else if(marks >=50 && marks<70)

{

System.out.println("Pass");

}

else if(marks >=70 && marks<80)

{

System.out.println(" Grade C");

}

else if (marks >=80 && marks<90)

{

System.out.println("Grade B");

}

else if (marks>=90 && marks<100)

{

System.out.println("Grade A");

}

else

{

System.out.println("Fail");

}

}

}

Java program to find odd or even number with ifelse

public class ifElse
{
public static void main (String[] args)
{
int a = 20;
if (a %2 == 0)
{
System.out.println(" Number is even");
}
else
{
System.out.println("Number is odd");
}
}
}

Parsing Strings into Dates

import java.util.*;
import java.text.*;

public class parseDate {
public static void main(String args[]) {
SimpleDateFormat a = new SimpleDateFormat("yyyy-MM-dd");
String input = args.length == 0 ? "1978-12-20" : args[0]; // enter the date to know the day

System.out.print(input + "Parses as");
Date t;
try {
t=a.parse(input);
System.out.println(t);
}
catch (ParseException e) {
System.out.println("Unparseable using " + a);
}
}
}

Date and time formatting can be done very easily using printf method

import java.util.*;
public class datePrintf {
public static void main(String args[]) {
Date date = new Date();
String str= String.format("Current Date/Time : %tc", date);
System.out.printf(str);
}
}

Date Formatting Using SimpleDateFormat

import java.util.*;
import java.text.*;

public class dateDemo1
{
public static void main(String args[])
{
Date dNow = new Date( );
SimpleDateFormat ft = new SimpleDateFormat ("E yyyy.MM.dd 'at' hh:mm:ss a zzz");

System.out.println("Current Date : " + ft.format(dNow));
}
}

Java program to get current Date and Time

import java.util.Date;
public class datePc
{
public static void main (String[] args)
{
Date today = new Date();
System.out.println(today.toString());
}
}


//output : Wed Feb 15 08:38:00 IST 2017

Program is an example of length method.

class stringLength
{
public static void main(String myArr[])
{
String a = " what is the length of this string ";
int len = a.length();
System.out.println("String length is : " + len);
}
}