Java program to generate right-angled triangle star-studded pattern:-
import java.util.Scanner; //importing the scanner class from util package to read from input devices
class pattern1
{
public static void main(String[] args)
{
Scanner scan=new Scanner(System.in);
System.out.println("Enter the number of lines:");
int line=scan.nextInt();
for(int i=1;i<=line;i++)
{
for(int j=1;j<=i;j++)
{
System.out.print("*");
}
System.out.println();
}
}
Output:-
