For printing using different triangle loop

An upturned triangle print out

for(int i=0;i<5;i++) {

    for(int j=0;j<=i;j++) {

       System.out.print("*");

     }

     System.out.println();

}

2 to print out the tip down triangle

for(int i=0;i<5;i++) {

      for(int j=i;j<5;j++) {

           System.out.print("*");

      }

      System.out.println();

}

Print isosceles acute-angled triangle

for(int i=0;i<5;i++) {

      for(int j=i+1;j<5;j++) {

           System.out.print(" ");

      }

       for(int k=0;k<=i;k++) {

           System.out.print("* ");

      }

           System.out.println();

}