All Pattern Programs in Java Language

public class AAA
{
public static void main(String[] args)
{
System.out.println("Programming Started");
int lines=5;
int charcount=1;
int mid=(lines+1)/2;

for(int i=1;i<=lines;i++)
{
for(int j=1;j<=charcount;j++)
{
System.out.print("A");
}
System.out.println();
if(i<mid)
{
charcount++;
}
else
{
charcount--;
}
}
System.out.println("programming ended");
}

}


Programming Started
A
AA
AAA
AA
A
programming ended




public class Pattern1
{
public static void main(String[] args)
{
System.out.println("Programming Started");
int lines=5;
int charcount=1;
int spacecount=2;
int mid=(lines+1)/2;

for(int i=1;i<=lines;i++)

, {
for(int j=1;j<=spacecount;j++)
{
System.out.print(" ");
}
for(int k=1;k<=charcount;k++)
{
System.out.print("A");
}
System.out.println();
if(i<mid)
{
charcount++;
spacecount--;
}
else
{
charcount--;
spacecount++;

}
}
System.out.println("programming ended");
}

}

Programming Started
A
AA
AAA
AA
A
programming ended



public class Pattern2
{
public static void main(String[] args)
{
System.out.println("Programming Started");
int lines=5;
int charcount=1;
int spacecount=2;
int mid=(lines+1)/2;

for(int i=1;i<=lines;i++)
{
for(int j=1;j<=spacecount;j++)
{
System.out.print(" ");
}
for(int k=1;k<=charcount;k++)
{