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Triangle_PrintingStar/triamgle.java

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+import java.util.*; // package to use Scanner class 
+class pattern { 
+    public static void main(String[] args) 
+    { 
+        Scanner sc = new Scanner(System.in); 
+        System.out.println("Enter the number of rows to be printed"); 
+        int rows = sc.nextInt(); 
+
+        // loop to iterate for the given number of rows 
+        for (int i = 1; i <= rows; i++) { 
+
+            // loop to print the number of spaces before the star 
+            for (int j = rows; j >= i; j--) { 
+                System.out.print(" "); 
+            } 
+
+            // loop to print the number of stars in each row 
+            for (int j = 1; j <= i; j++) { 
+                System.out.print("* "); 
+            } 
+
+            // for new line after printing each row 
+            System.out.println(); 
+        } 
+    } 
+}

Triangle_PrintingStar/triangle.java

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+import java.util.Scanner;
+
+public class triangle {
+
+		public static void main(String[] args) {
+			// TODO Auto-generated method stub
+			Scanner sc =new Scanner(System.in);
+			System.out.println("Enetr the no");
+			int n=sc.nextInt();
+
+			for(int i=1;i<=n;i++) {
+				for(int j=1;j<=i-1;j++) {
+					System.out.print(" ");	
+			}
+				for(int j=1;j<=n-i+1;j++) {
+				System.out.print("*");
+				}
+				System.out.println(" ");
+
+		}
+		}
+}

Triangle_PrintingStar/triangle1.java

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+// Java Program to print the given pattern 
+import java.util.*; // package to use Scanner class 
+class triangle1 { 
+	public static void main(String[] args) 
+	{ 
+		Scanner sc = new Scanner(System.in); 
+		System.out.println("Enter the number of rows to be printed"); 
+		int rows = sc.nextInt(); 
+        int number=1;
+		// loop to iterate for the given number of rows 
+		for (int i = 1; i <= rows; i++) { 
+
+			// loop to print the number of spaces before the star 
+			for (int j = rows; j >= i; j--) { 
+				System.out.print(" "); 
+			} 
+
+			// loop to print the number of stars in each row 
+			for (int j = 1; j <= i; j++) { 
+				System.out.print(number+"  "); 
+				number++;
+			} 
+
+			// for new line after printing each row 
+			System.out.println(); 
+		} 
+	} 
+} 

Triangle_PrintingStar/triangle2.java

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+import java.util.Scanner;
+
+public class triangle2 {
+
+		public static void main(String[] args) {
+			// TODO Auto-generated method stub
+			Scanner sc =new Scanner(System.in);
+			System.out.println("Enetr the no");
+			int n=sc.nextInt();
+
+			for(int i=1;i<=n;i++)
+			{
+				for(int j=1;j<=i;j++)
+				{
+					System.out.print("*  ");
+				}
+				System.out.println("");
+			}
+			for(int i=1; i<=n; i++) {
+				for(int j=1; j<=n-i; j++) {
+					System.out.print("*  ");
+				}
+				System.out.println();
+			}
+		}
+}

Triangle_PrintingStar/triangle3.java

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+import java.util.Scanner;
+
+public class triangle3 {
+
+	public static void main(String[] args) {
+		// TODO Auto-generated method stub
+		Scanner sc =new Scanner(System.in);
+		System.out.println("Enetr the no");
+		int n=sc.nextInt();
+
+		System.out.println("*");
+		for(int i=2;i<=n-1;i++)
+		{
+			System.out.print("* ");
+
+			for (int j=1;j<=i-2;j++)
+			{
+				System.out.print("  ");
+			}
+
+			System.out.print("* ");
+
+			System.out.println();
+		}
+		for(int i=1;i<=n;i++) {
+			System.out.print("* ");
+		}
+	}
+
+}

Triangle_PrintingStar/triangle4.java

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+import java.util.Scanner;
+
+public class triangle4 {
+
+	public static void main(String[] args) {
+		// TODO Auto-generated method stub
+		Scanner sc =new Scanner(System.in);
+		System.out.println("Enetr the no");
+		int n=sc.nextInt();
+	}
+
+}