Merge pull request #1 from Raven-Lee/feature

Feature

Main.java

@@ -0,0 +1,10 @@
+public class Main {
+
+    public static void main(String[] args) {
+
+        Triangle triangle1 = new Triangle();
+
+        triangle1.isoscelesTriangle();
+        triangle1.asteriskTriangle();
+    }
+}

README.md

@@ -1,2 +1,4 @@
 # Hello-world
 This is my first repository
+I am trying to learn Java on imooc.com.
+The exercise code will be putted on this repository.

Triangle.java

@@ -0,0 +1,40 @@
+/**
+ * Created by Administrator on 2017/6/1.
+ * Creating a isosceles triangle with number
+ */
+
+public class Triangle {
+
+    public void isoscelesTriangle() {
+        for (int i = 1; i < 10; i++) {
+            for (int j = 9; j > i; j--) {
+                System.out.print(" ");//for empty space in front of number which make
+            }
+            for (int k = i; k >= 1; k--) {
+                System.out.print(k);//numbers before 1
+            }
+            for (int l = 2; l <= i; l++) {
+                System.out.print(l);//numbers after 1
+            }
+            System.out.println("");
+        }
+        System.out.println("");
+    }
+
+    public void asteriskTriangle() {
+        for (int i = 1; i < 10; i++) {
+            for (int j = 9; j > i; j--) {
+                System.out.print(" ");//for empty space in front of number which make
+            }
+            for (int k = i; k >= 1; k--) {
+                System.out.print("*");//numbers before 1
+            }
+            for (int l = 2; l <= i; l++) {
+                System.out.print("*");//numbers after 1
+            }
+            System.out.println("");
+        }
+    }
+
+
+}