Pattern Problems solution using Java

Anurag-Sharma-26 · Anurag-Sharma-26 · commit d88fd7f4ff54 · 2022-10-08T23:07:41.000+05:30
diff --git a/README.md b/README.md
@@ -394,4 +394,6 @@ Kushagra Agarwal(Kanpur)
 
 Harsh Singh (Gorakhpur)
 
+Anurag Sharma (Delhi)
+
 Chidambaram S (TamilNadu)
diff --git a/java/GfG-Basic-Pattern-Problems/Pattern01.java b/java/GfG-Basic-Pattern-Problems/Pattern01.java
@@ -0,0 +1,18 @@
+import java.util.Scanner;
+
+public class Pattern1 {
+    public static void main(String[] args) {
+        Scanner scan = new Scanner(System.in);
+        int n = scan.nextInt();
+        printSquare(n);
+    }
+
+    static void printSquare(int n){
+        for (int i = 0; i < n; i++) {
+            for (int j = 0; j < n; j++) {
+                System.out.print("*" + " ");
+            }
+            System.out.println();
+        }
+    }
+}
diff --git a/java/GfG-Basic-Pattern-Problems/Pattern02.java b/java/GfG-Basic-Pattern-Problems/Pattern02.java
@@ -0,0 +1,17 @@
+import java.util.Scanner;
+
+public class Pattern2 {
+    public static void main(String[] args) {
+        Scanner scan = new Scanner(System.in);
+        int n = scan.nextInt();
+        printSquare(n);
+    }
+    static void printSquare(int n){
+        for (int i = 0; i < n; i++) {
+            for (int j = 0; j <= i; j++) {
+                System.out.print("*" + " ");
+            }
+            System.out.println();
+        }
+    }
+}
diff --git a/java/GfG-Basic-Pattern-Problems/Pattern03.java b/java/GfG-Basic-Pattern-Problems/Pattern03.java
@@ -0,0 +1,17 @@
+import java.util.Scanner;
+
+public class Pattern3 {
+    public static void main(String[] args) {
+        Scanner scan = new Scanner(System.in);
+        int n = scan.nextInt();
+        printSquare(n);
+    }
+    static void printSquare(int n){
+        for (int i = 1; i <= n; i++) {
+            for (int j = 1; j <= i; j++) {
+                System.out.print(j + " ");
+            }
+            System.out.println();
+        }
+    }
+}
diff --git a/java/GfG-Basic-Pattern-Problems/Pattern04.java b/java/GfG-Basic-Pattern-Problems/Pattern04.java
@@ -0,0 +1,17 @@
+import java.util.Scanner;
+
+public class Pattern4 {
+    public static void main(String[] args) {
+        Scanner scan = new Scanner(System.in);
+        int n = scan.nextInt();
+        printSquare(n);
+    }
+    static void printSquare(int n){
+        for (int i = 1; i <= n; i++) {
+            for (int j = 1; j <= i; j++) {
+                System.out.print(i + " ");
+            }
+            System.out.println();
+        }
+    }
+}
diff --git a/java/GfG-Basic-Pattern-Problems/Pattern05.java b/java/GfG-Basic-Pattern-Problems/Pattern05.java
@@ -0,0 +1,17 @@
+import java.util.Scanner;
+
+public class Pattern5 {
+    public static void main(String[] args) {
+        Scanner scan = new Scanner(System.in);
+        int n = scan.nextInt();
+        printSquare(n);
+    }
+    static void printSquare(int n){
+        for (int i = 1; i <= n; i++) {
+            for (int j = n; j >= i; j--) {
+                System.out.print("*" + " ");
+            }
+            System.out.println();
+        }
+    }
+}
diff --git a/java/GfG-Basic-Pattern-Problems/Pattern06.java b/java/GfG-Basic-Pattern-Problems/Pattern06.java
@@ -0,0 +1,19 @@
+import java.util.Scanner;
+
+public class Pattern6 {
+    public static void main(String[] args) {
+        Scanner scan = new Scanner(System.in);
+        int n = scan.nextInt();
+        printSquare(n);
+    }
+    static void printSquare(int n){
+        for (int i = 1; i <= n; i++) {
+            int a=1;
+            for (int j = n; j >= i; j--) {
+                System.out.print(a + " ");
+                a++;
+            }
+            System.out.println();
+        }
+    }
+}
diff --git a/java/GfG-Basic-Pattern-Problems/Pattern07.java b/java/GfG-Basic-Pattern-Problems/Pattern07.java
@@ -0,0 +1,24 @@
+import java.util.Scanner;
+
+public class Pattern7 {
+    public static void main(String[] args) {
+        Scanner scan = new Scanner(System.in);
+        int n = scan.nextInt();
+        printSquare(n);
+    }
+    static void printSquare(int n){
+        int space = n-1;
+        int star = 1;
+        for (int i = 1; i <= n; i++) {
+            for (int j = 1; j <= space ; j++) {
+                System.out.print(" ");
+            }
+            for (int j = 1; j <= star; j++) {
+                System.out.print("*");
+            }
+            space--;
+            star += 2;
+            System.out.println();
+        }
+    }
+}
diff --git a/java/GfG-Basic-Pattern-Problems/Pattern08.java b/java/GfG-Basic-Pattern-Problems/Pattern08.java
@@ -0,0 +1,24 @@
+import java.util.Scanner;
+
+public class Pattern8 {
+    public static void main(String[] args) {
+        Scanner scan = new Scanner(System.in);
+        int n = scan.nextInt();
+        printSquare(n);
+    }
+    static void printSquare(int n){
+        int space = 0;
+        int star = (2 * n) - 1;
+        for (int i = 1; i <= n; i++) {
+            for (int j = 1; j <= space ; j++) {
+                System.out.print(" ");
+            }
+            for (int j = star; j >= 1; j--) {
+                System.out.print("*");
+            }
+            space++;
+            star -= 2;
+            System.out.println();
+        }
+    }
+}
diff --git a/java/GfG-Basic-Pattern-Problems/Pattern09.java b/java/GfG-Basic-Pattern-Problems/Pattern09.java
@@ -0,0 +1,33 @@
+import java.util.Scanner;
+
+public class Pattern9 {
+    public static void main(String[] args) {
+        Scanner scan = new Scanner(System.in);
+        int n = scan.nextInt();
+        printSquare(n);
+    }
+    static void printSquare(int n){
+        int space = n-1;
+        for (int i = 1; i <= n; i++) {
+            for (int j = 1; j <= space ; j++) {
+                System.out.print(" ");
+            }
+            for (int j = 1; j <= i; j++) {
+                System.out.print("*" + " ");
+            }
+            space--;
+            System.out.println();
+        }
+        for (int i = 1; i <= n; i++) {
+            for (int j = 1; j <= space+1 ; j++) {
+                System.out.print(" ");
+            }
+            for (int j = n; j >= i; j--) {
+                System.out.print("*" + " ");
+            }
+            space++;
+            System.out.println();
+        }
+
+    }
+}
diff --git a/java/GfG-Basic-Pattern-Problems/Pattern10.java b/java/GfG-Basic-Pattern-Problems/Pattern10.java
@@ -0,0 +1,24 @@
+import java.util.Scanner;
+
+public class Pattern10 {
+    public static void main(String[] args) {
+        Scanner scan = new Scanner(System.in);
+        int n = scan.nextInt();
+        printSquare(n);
+    }
+    static void printSquare(int n){
+        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-1; i++) {
+            for (int j = n-1; j >= i; j--) {
+                System.out.print("*" + " ");
+            }
+            System.out.println();
+        }
+
+    }
+}
diff --git a/java/GfG-Basic-Pattern-Problems/Pattern11.java b/java/GfG-Basic-Pattern-Problems/Pattern11.java
@@ -0,0 +1,20 @@
+import java.util.Scanner;
+
+public class Pattern11 {
+    public static void main(String[] args) {
+        Scanner scan = new Scanner(System.in);
+        int n = scan.nextInt();
+        printSquare(n);
+    }
+    static void printSquare(int n){
+        int a = 1;
+        for (int i = 1; i <= n; i++) {
+            for (int j = 1; j <= i; j++) {
+                System.out.print(a + " ");
+                a = 1 - a;
+            }
+            a = (i-1)%2;
+            System.out.println();
+        }
+    }
+}
diff --git a/java/GfG-Basic-Pattern-Problems/Pattern12.java b/java/GfG-Basic-Pattern-Problems/Pattern12.java
@@ -0,0 +1,28 @@
+import java.util.Scanner;
+
+public class Pattern12 {
+    public static void main(String[] args) {
+        Scanner scan = new Scanner(System.in);
+        int n = scan.nextInt();
+        printSquare(n);
+    }
+    static void printSquare(int n){
+        for (int i = 1; i <= n; i++) {
+            for (int j = 1; j <= n; j++) {
+                if (j <= i) {
+                    System.out.print(j + " ");
+                } else {
+                    System.out.print("  ");
+                }
+            }
+            for (int j = n; j >= 1; j--) {
+                if (j > i) {
+                    System.out.print("  ");
+                } else {
+                    System.out.print(j + " ");
+                }
+            }
+            System.out.println();
+        }
+    }
+}
diff --git a/java/GfG-Basic-Pattern-Problems/Pattern13.java b/java/GfG-Basic-Pattern-Problems/Pattern13.java
@@ -0,0 +1,19 @@
+import java.util.Scanner;
+
+public class Pattern13 {
+    public static void main(String[] args) {
+        Scanner scan = new Scanner(System.in);
+        int n = scan.nextInt();
+        printSquare(n);
+    }
+    static void printSquare(int n){
+        int a = 1;
+        for (int i = 1; i <= n; i++) {
+            for (int j = 1; j <= i; j++) {
+                System.out.print(a + " ");
+                a++;
+            }
+            System.out.println();
+        }
+    }
+}
diff --git a/java/GfG-Basic-Pattern-Problems/Pattern14.java b/java/GfG-Basic-Pattern-Problems/Pattern14.java
@@ -0,0 +1,19 @@
+import java.util.Scanner;
+
+public class Pattern14 {
+    public static void main(String[] args) {
+        Scanner scan = new Scanner(System.in);
+        int n = scan.nextInt();
+        printSquare(n);
+    }
+    static void printSquare(int n){
+        for (int i = 1; i <= n; i++) {
+            int a = 65;
+            for (int j = 1; j <= i; j++) {
+                System.out.print((char)a);
+                a++;
+            }
+            System.out.println();
+        }
+    }
+}
diff --git a/java/GfG-Basic-Pattern-Problems/Pattern15.java b/java/GfG-Basic-Pattern-Problems/Pattern15.java
@@ -0,0 +1,19 @@
+import java.util.Scanner;
+
+public class Pattern15 {
+    public static void main(String[] args) {
+        Scanner scan = new Scanner(System.in);
+        int n = scan.nextInt();
+        printSquare(n);
+    }
+    static void printSquare(int n){
+        for (int i = 1; i <= n; i++) {
+            int a = 65;
+            for (int j = n; j >= i; j--) {
+                System.out.print((char)a);
+                a++;
+            }
+            System.out.println();
+        }
+    }
+}
diff --git a/java/GfG-Basic-Pattern-Problems/Pattern16.java b/java/GfG-Basic-Pattern-Problems/Pattern16.java
@@ -0,0 +1,18 @@
+import java.util.Scanner;
+
+public class Pattern16 {
+    public static void main(String[] args) {
+        Scanner scan = new Scanner(System.in);
+        int n = scan.nextInt();
+        printSquare(n);
+    }
+    static void printSquare(int n){
+        int a = 65;
+        for (int i = 0; i < n; i++) {
+            for (int j = 0; j <= i; j++) {
+                System.out.print((char)(a+i));
+            }
+            System.out.println();
+        }
+    }
+}
diff --git a/java/GfG-Basic-Pattern-Problems/Pattern17.java b/java/GfG-Basic-Pattern-Problems/Pattern17.java
@@ -0,0 +1,28 @@
+import java.util.Scanner;
+
+public class Pattern17 {
+    public static void main(String[] args) {
+        Scanner scan = new Scanner(System.in);
+        int n = scan.nextInt();
+        printSquare(n);
+    }
+    static void printSquare(int n){
+        int space = n-1;
+        int a=65;
+        for (int i = 1; i <= n; i++) {
+            for(int j = 1; j<=space; j++){
+                System.out.print(" ");
+            }
+            for (int j = 65; j <= a; j++) {
+                System.out.print((char)j);
+            }
+            for(int j = a-1; j >= 65; j--){
+                System.out.print((char)j);
+            }
+            space--;
+            a++;
+
+            System.out.println();
+        }
+    }
+}
diff --git a/java/GfG-Basic-Pattern-Problems/Pattern18.java b/java/GfG-Basic-Pattern-Problems/Pattern18.java
diff --git a/java/GfG-Basic-Pattern-Problems/Pattern19.java b/java/GfG-Basic-Pattern-Problems/Pattern19.java
diff --git a/java/GfG-Basic-Pattern-Problems/Pattern20.java b/java/GfG-Basic-Pattern-Problems/Pattern20.java
diff --git a/java/GfG-Basic-Pattern-Problems/Pattern21.java b/java/GfG-Basic-Pattern-Problems/Pattern21.java
diff --git a/java/GfG-Basic-Pattern-Problems/Pattern22.java b/java/GfG-Basic-Pattern-Problems/Pattern22.java
