Add new code

Signed-off-by: Carlos Maiolino <[email protected]>

1 files changed, 39 insertions, 0 deletions

diff --git a/java/stacks/StackOfStrings.java b/java/stacks/StackOfStrings.java
new file mode 100644
index 0000000..d6a9e3b
--- /dev/null
+++ b/java/stacks/StackOfStrings.java
@@ -0,0 +1,39 @@
+public class StackOfStrings {
+
+	private class Node {
+		String item;
+		Node next;
+	}
+
+	private Node first = null;
+	private int size = 0;
+
+	public boolean isEmpty() {
+		return first == null;
+	}
+/*
+	public void STackOfStrings() {
+
+	}
+*/
+
+	public void push(String item) {
+		Node oldfirst = first;
+		first = new Node();
+		first.item = item;
+		first.next = oldfirst;
+		size++;
+	}
+
+	public String pop() {
+		String i = first.item;
+		first = first.next;
+		size--;
+		return i;
+	}
+
+	public int size() {
+		return size;
+	}
+
+}