add Spreeha as contributor (#64)

day5/Java/pattern_1.java

@@ -0,0 +1,25 @@
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package patterns;
+
+/**
+ *
+ * @author SPREEHA DUTTA
+ */
+public class pattern1 {
+    public static void main(String []args)
+    {
+        int i,j;
+        for(i=1;i<=5;i++)
+        {
+            for(j=1;j<=i;j++)
+            {
+                System.out.print(j);
+            }
+            System.out.println();
+        }
+    }
+}

day5/Java/pattern_2.java

@@ -0,0 +1,27 @@
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package patterns;
+
+/**
+ *
+ * @author SPREEHA DUTTA
+ */
+public class pattern2 {
+    public static void main(String []args)
+    {
+        int i,j;int k=1;
+        for(i=1;i<=4;i++)
+        {
+            for(j=1;j<=i;j++)
+            {
+                System.out.print(k);
+                k++;
+            }
+            System.out.println();
+        }
+    }
+
+}

day5/Java/pattern_3.java

@@ -0,0 +1,31 @@
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package patterns;
+
+/**
+ *
+ * @author SPREEHA DUTTA
+ */
+public class pattern3 {
+    public static void main(String []args)
+    {
+        int i,j;int k=0;
+        int t=5/2;
+        t++;
+        for(i=1;i<=5;i++)
+        {
+            if(i<=t)
+                k++;
+            else
+                k--;
+            for(j=1;j<=k;j++)
+            {
+                System.out.print(j);
+            }
+            System.out.println();
+        }
+    }
+}

day5/Java/pattern_4.java

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+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package patterns;
+
+/**
+ *
+ * @author SPREEHA DUTTA
+ */
+public class pattern4 {
+    public static void print(int s,int p)
+    {
+        int i,j;int t;
+        if(p<=5)
+        {
+            for(i=1;i<=s;i++)
+                System.out.print(' ');
+            t=p;
+            for(j=1;j<=p;j++)
+            {
+                System.out.print(t);
+                t++;
+            }
+            t-=2;
+            for(j=1;j<p;j++)
+            {
+                System.out.print(t);
+                t--;
+            }
+            System.out.println();
+            s--;
+            p++;
+            print(s,p);
+        }
+        else
+            return;
+    }
+    public static void main(String []args)
+    {
+                print(4,1);
+    }
+}

day5/Java/pattern_5.java

@@ -0,0 +1,30 @@
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package patterns;
+
+/**
+ *
+ * @author SPREEHA DUTTA
+ */
+public class pattern5 {
+    public static void main(String []args)
+    {
+        int n=4;
+        int i,j;int k=0;int p=(n*2-1);
+        for(int t=1;t<=n;t++)
+        {
+        for(j=1;j<=k;j++)
+                System.out.print(' ');
+        k++;
+        for(i=1;i<=p;i++)
+        {
+            System.out.print('*');
+        }
+        p-=2;
+        System.out.println();
+        }
+    }
+}

day5/Java/pattern_6.java

@@ -0,0 +1,57 @@
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package patterns;
+
+/**
+ *
+ * @author SPREEHA DUTTA
+ */
+public class pattern6 {
+    static int n=3;
+    public static void print(int k,int i)
+    {
+        int j;
+        for(j=1;j<=k;j++)
+            System.out.print(' ');
+        for(j=1;j<=i;j++)
+            System.out.print('*');
+        //System.out.println();
+    }
+    public static void printdown(int k,int i)
+    {
+        int j;
+        for(j=1;j<=k;j++)
+            System.out.print(' ');
+        for(j=1;j<=i;j++)
+            System.out.print('*');
+        //System.out.println();
+    }
+    public static void printrow(int i)
+    {
+        int k;int j;
+        k=n-i;
+        while(i<=n)
+        {
+            print(k,i);
+            k--;
+            i+=2;
+            System.out.println();
+        }
+        //k++;
+        while(i>=1)
+        {
+            printdown(k,i);
+            k++;
+            i-=2;
+            System.out.println();
+        }
+    }
+    public static void main(String []args)
+    {
+        printrow(1);
+    }
+
+}

day5/Java/pattern_7.java

@@ -0,0 +1,56 @@
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package patterns;
+
+/**
+ *
+ * @author SPREEHA DUTTA
+ */
+public class pattern7 {
+    public static void main(String []args)
+    {
+        int n=3;
+        int i,j,t,k;int l=1;
+        t=n*2+1;
+        for(i=n;i>=1;i--)
+        {
+            k=t-2*i;
+            for(j=i;j>=1;j--)
+            {
+                System.out.print('*');
+            }
+            l=1;
+            while(l<=k)
+            {
+                System.out.print(' ');
+                l++;
+            }
+            //System.out.print(' ');
+            for(j=1;j<=i;j++)
+                System.out.print('*');
+            System.out.println();
+        }
+
+        for(i=1;i<=n;i++)
+        {
+            k=t-2*i;
+            for(j=i;j>=1;j--)
+            {
+                System.out.print('*');
+            }
+            l=1;
+            while(l<=k)
+            {
+                System.out.print(' ');
+                l++;
+            }
+            for(j=1;j<=i;j++)
+                System.out.print('*');
+            System.out.println();
+        }
+    }
+
+}

day5/Java/pattern_8.java

@@ -0,0 +1,56 @@
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package patterns;
+
+/**
+ *
+ * @author SPREEHA DUTTA
+ */
+public class pattern8 {
+    public static void main(String []args)
+    {
+        int n=3;
+        int i,j,t,k;int l=1;
+        t=n*2;
+        for(i=1;i<=n;i++)
+        {
+            k=t-2*i;
+            for(j=i;j>=1;j--)
+            {
+                System.out.print('*');
+            }
+            l=1;
+            while(l<=k)
+            {
+                System.out.print(' ');
+                l++;
+            }
+            for(j=1;j<=i;j++)
+                System.out.print('*');
+            System.out.println();
+        }
+
+        for(i=n;i>=1;i--)
+        {
+            k=t-2*i;
+            for(j=i;j>=1;j--)
+            {
+                System.out.print('*');
+            }
+            l=1;
+            while(l<=k)
+            {
+                System.out.print(' ');
+                l++;
+            }
+            //System.out.print(' ');
+            for(j=1;j<=i;j++)
+                System.out.print('*');
+            System.out.println();
+        }
+
+    }
+}