Arrays - Java
An array is collection of variables of the same type arranged in the memory in an uniform order .
Types of arrays
- Single dimensional array
- Double dimentional array
- Multidimentional arrays
- Dynamic arrays/Jagged arrays
Syntax:
Data type array name[ ];
Array name = new type [size];
Datatype []arrayname=new datatype[eliments]
Datatype arrayname[][]=new datatype[eliments][eliments]
Datatype arrayname[][]=new datatype[eliments][]
Datatype arrayname[]={values list}
WRITE A PROGRAM ON ARRAYS.
class Arrays
{
public static void main(String args[])
{
int a[ ],i;
a=new int[5];
a[0]=10;
a[1]=20;
a[2]=30;
a[3]=40;
a[4]=50;
for(i=0;i<5;i++)
System.out.println(a[i]);
}
}
WRITE A PROGRAM TO PRINT SUM OF NUMBERS USING ARRAYS.
class Array2
{
public static void main(String args[])
{
int a[ ]=new int[5];
int i,s=0;
for(i=0;i<5;i++)
a[i]=i+10;
for(i=0;i<5;i++)
{
s=s+a[i];
System.out.println(s);
}
}
}
WRITE A PROGRAM TO ASSIGN THE VALUES DIRECTLY TO ARRAY.
class Array3
{
public static void main(String args[])
{
int a[ ]={10,20,30,40};
for(int i=0;i<4;i++)
System.out.println(a[i]);
}
}
WRITE A PROGRAM ON DOUBLE DIMENSION ARRAY.
class Array4
{
public static void main(String args[])
{
int a[ ][ ]=new int[2][2];
for(int i=0;i<2;i++)
{
for(int j=0;j<2;j++)
{
a[i][j]=i+j;
}
}
for(int i=0;i<2;i++)
{
for(int j=0;j<2;j++)
{
System.out.println(a[i][j]);
}
}
}
}
For
Online Classes
Contact Us: 9885348743
Online Classes
Contact Us: 9885348743