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Structure
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Union
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i. Access Members
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We can access all the members of structure at anytime.
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Only one member of union can be accessed at anytime.
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ii. Memory Allocation
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Memory is allocated for all variables.
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Allocates memory for variable which variable require more
memory.
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iii. Initialization
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All members of structure can be initialized
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Only the first member of a union can be initialized.
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iv. Keyword
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'struct' keyword is used to declare structure.
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'union' keyword is used to declare union.
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v. Syntax
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struct struct_name
{
structure element 1;
structure element 2;
----------
----------
structure element n;
}struct_var_nm;
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union union_name
{
union element 1;
union element 2;
----------
----------
union element n;
}union_var_nm;
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vi. Example
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struct item_mst
{
int rno;
char nm[50];
}it;
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union item_mst
{
int rno;
char nm[50];
}it;
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Similer..........
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HTTP And HTTPS |
GET And POST |
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