public
class
triangle {
public
static
void
main ( String arg[] ){
InputStreamReader istream =
new
InputStreamReader(System.in) ;
BufferedReader read =
new
BufferedReader(istream) ;
System.out.print(
"Enter Triangle Size : "
);
int
num=
0
;
try
{
num=Integer.parseInt( read.readLine() );
}
catch
(Exception Number){
System.out.println(
"Invalid Number!"
);
}
for
(
int
i=
1
;i<=num;i++){
for
(
int
j=
1
;j<num-(i-
1
);j++){
System.out.print(
" "
);
}
for
(
int
k=
1
;k<=i;k++){
System.out.print(
"*"
);
for
(
int
k1=
1
;k1<k;k1+=k){
System.out.print(
"*"
);
}
}
System.out.println();
}
}
}
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