Added a program in java

Java/program-1/README.md

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+Program 1
+
+Write a program to find the maximum and minimum element in an array.
+
+Variable description--
+N=Number of elements in an array
+arr=Array of size N
+min= Holds the minimum element
+max=Holds the maximum element

Java/program-1/program.java

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+import java.util.*;
+import java.io.*;
+
+class prg {
+	public static void main (String[] args) {
+		Scanner sc=new Scanner(System.in);
+		System.out.println("Enter the size of array");
+		int N=sc.nextInt();
+		int arr[]=new int[N];
+		System.out.println("Enter the elements in the array");
+		for(int i=0;i<N;i++)
+		arr[i]=sc.nextInt();
+		int min=arr[0]; // Assuming first element to be the minimum
+		int max=arr[0]; // Assuming first element to be the maximum
+		for(int i=1;i<N;i++)
+		{
+		    if(arr[i]<min)
+		    min=arr[i];
+		    if(arr[i]>max)
+		    max=arr[i];
+		}
+		System.out.println("Minimum="+min+"\nMaximum="+max);
+	}
+}