Merge pull request #650 from vijayv18/number-patterns-java

Number patterns java

Author: mergify[bot]

Java/Number Patterns/NumberPattern13.java

@@ -0,0 +1,54 @@
+public class NumberPattern13 {
+
+	public static void main(String[] args) {
+		int n=6,sum=0;
+		for(int i=0;i<n;i++) {
+			if(i%2==0) sum = 0;
+			for(int j=0;j<=i;j++) {
+				sum = Math.abs(sum - 1);
+				System.out.print(sum+" ");
+			}
+			System.out.println();
+		}
+	}
+}
+
+// Another method to solve this
+
+/* 
+
+public class NumberPattern13 {
+
+	public static void main(String[] args) {
+		int n=6;
+		for(int i=0;i<n;i++) {
+			for(int j=0;j<=i;j++) {
+				if((i+j) % 2 == 0) {
+					System.out.print(1+" ");
+				}
+				else {
+					System.out.print(0+" ");
+				}
+			}
+			System.out.println();
+		}
+	}
+} 
+
+*/
+
+/* 
+
+The output for the above program
+
+1 
+0 1 
+1 0 1 
+0 1 0 1 
+1 0 1 0 1 
+0 1 0 1 0 1 
+
+
+*/
+
+

Java/Number Patterns/NumberPattern14.java

@@ -0,0 +1,41 @@
+public class NumberPattern14 {
+
+	public static void main(String[] args) {
+		int n = 4;
+		int i, j;
+		  
+        // outer loop to handle number of rows
+        for (i = 1; i <= n; i++) {
+            // inner loop to print the spaces
+            for (j = 1; j <= 2 * (n - i); j++) {
+                System.out.print(" ");
+            }
+  
+            // inner loop to print the first part
+            for (j = i; j >= 1; j--) {
+                System.out.print(j + " ");
+            }
+  
+            // inner loop to print the second part
+            for (j = 2; j <= i; j++) {
+                System.out.print(j + " ");
+            }
+  
+            // printing new line for each row
+            System.out.println();
+        }
+    }
+}
+
+/* 
+
+The output for the above program
+
+      1 
+    2 1 2 
+  3 2 1 2 3 
+4 3 2 1 2 3 4 
+
+*/
+
+

Java/Number Patterns/NumberPattern15.java

@@ -0,0 +1,30 @@
+public class NumberPattern15 {
+
+	public static void main(String[] args) {
+		int n=4;
+		for(int i=0;i<n;i++) {
+			int count = i+1;
+			for(int j=0;j<=i;j++) {
+				System.out.print(" ");
+			}
+			for(int k=n-1;k>=i;k--) {
+				System.out.print(count+" ");
+				count++;
+			}
+			System.out.println();
+		}
+	}
+
+}
+
+/* 
+
+The output for the above program
+
+ 1 2 3 4 
+  2 3 4 
+   3 4 
+    4 
+
+*/
+

Java/Number Patterns/NumberPattern16.java

@@ -0,0 +1,45 @@
+public class NumberPattern16 {
+
+	public static void main(String[] args) {
+		int n=4;
+		for(int i=0;i<n;i++) {
+			int count = i+1;
+			for(int j=0;j<=i;j++) {
+				System.out.print(" ");
+			}
+			for(int k=n-1;k>=i;k--) {
+				System.out.print(count+" ");
+				count++;
+			}
+			System.out.println();
+		}
+		for(int i=1;i<n;i++) {
+			int count = n-i;
+			for(int j=n-1;j>=i;j--) {
+				System.out.print(" ");
+			}
+			for(int k=0;k<=i;k++) {
+				System.out.print(count+" ");
+				count++;
+			}
+			System.out.println();
+		}
+	}
+
+}
+
+/* 
+
+The output for the above program
+
+ 1 2 3 4 
+  2 3 4 
+   3 4 
+    4 
+   3 4 
+  2 3 4 
+ 1 2 3 4
+
+*/
+
+