Create duplicate_brackets_check.java

duplicate_brackets_check.java

@@ -0,0 +1,46 @@
+// Print False for not having duplicate brackets
+// True for having duplicate brackets
+import java.io.*;
+import java.util.*;
+public class Program
+{
+    public static void main(String[] args) 
+    {
+        //input liya
+        Scanner scn=new Scanner(System.in);
+        String str=scn.nextLine();
+
+        //stack for character
+		Stack <Character> st=new Stack<>();
+        for(int i=0;i<str.length();i++)
+        {
+
+            char ch=str.charAt(i);
+            if(ch==')')
+            {
+                //agar character closing bracket hei to fir check whether the opnening bracket aa rha hei kya ya fir jab tak opening bracket nhi aaye tab tak pop karna hei
+
+                if(st.peek()=='(')
+                {
+                    //agar peek par opening bracket hei to true
+                    System.out.println("True");
+                    return;
+                }
+                else
+                {
+                    while(st.peek()!='(')
+                    {
+                        st.pop();
+                    }
+                    st.pop();
+                }
+            }
+            else
+            {
+            //closing bracket na hei character to push character in stack
+                st.push(ch);
+            }
+        }
+        System.out.println("False");
+	}
+}