how to call substring method in java on variables?

Question

String b=date.toString();
String a=b.substring(3,5);

Not giving desired o/p

Answer 1

check the API of substring carefully
it gives a substring from 3rd position to 8th position

Answer 2

1.public String substring(int beginIndex)

Returns a new string that is a substring of this string. The substring begins with the character at the specified index and extends to the end of this string.

Examples:

"unhappy".substring(2) returns "happy"
"Harbison".substring(3) returns "bison"
"emptiness".substring(9) returns "" (an empty string)


Parameters:
beginIndex - the beginning index, inclusive.
Returns:
the specified substring.
Throws:
IndexOutOfBoundsException - if beginIndex is negative or larger than the length of this String object.

2.public String substring(int beginIndex,
int endIndex)

Returns a new string that is a substring of this string. The substring begins at the specified beginIndex and extends to the character at index endIndex - 1. Thus the length of the substring is endIndex-beginIndex.

Examples:

"hamburger".substring(4, 8) returns "urge"
"smiles".substring(1, 5) returns "mile"


Parameters:
beginIndex - the beginning index, inclusive.
endIndex - the ending index, exclusive.
Returns:
the specified substring.
Throws:
IndexOutOfBoundsException - if the beginIndex is negative, or endIndex is larger than the length of this String object, or beginIndex is larger than endIndex.

Answer 3

b.substring(x,y)
x is the starting position in the string b (start counting from 0)
y is the length of the substring result

Answer 4

First of all you need to tell us your desired output...

Take note the format of Date String
DDD MMM DD HH:MM:SS GMT+HH:MM YYYY

So if you want to take the time only
String a = b.substring(11, 20);

if you want the date MMM DD YYYY
String a = b.substring( 3, 9) + ", " + b.substring( 30, 34 );

/* GoOd LuCk */

Answer 5

hey visiy http://myjava.batcave.net