Question { 19167 }

what is the need to set path in java? how many ways to set
path in java? Explain breif?

Answer

JAVA PATH IS COMPALASARY SET BECAUSE YOU NO SET THE PATH
JAVA PROGRAM IS DOES NOT EXECUTED.

JAVA PATH SET IN TWO WAYS THEY ARE
1.COMMAND PROMPT:
TYPE THE COMMAND
SET PATH=PATH%;d:/JAVA/BIN

d:/JAVA/BIN IS A JAVA PATH FOR SYATEM

2.TO SET JAVA PATH IN ENVIRONMENTAL VARIABLES.
1.RIGHT CLICK ON MY COMPUTER ICON SELECT
PROPERTIES.
2.SELECT THE ADVANCE TAB.CLICK ON ENVIRONMENTAL BUTTON.
3.THEN CHOOSE THE NEW OPTION
4.TPYE VARIABLE NAME AND VARIABLE VALUE
5.VARIABLE NAME IS PATH AND
VARIABLE VALUE IS"SET PATH=%PATH%"D:/JAVA/BIN

Question { 4330 }

What Is Pointer?

Answer

pointer is variable which holds the address of nother
variable is called pointer.
pointer concept does not support the java.it only for c,c++,


EXAMPLE PROGRAM FOR C:
MAIN()
{
int *a=25;/*it print the value address of the a variable
value*/
int b=a;/*a value assign b*/
int c=&b;/*it print the value of the b*/
printf("%d",*a);
printf("%d",b);
printf("%d",c);
getch();
}

OUTPUT:
245 ADDRESS OF A
25
25