Commit 85cb408

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Added code for Module 6

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	`1`	`+/*`
	`2`	`+ * To change this license header, choose License Headers in Project Properties.`
	`3`	`+ * To change this template file, choose Tools \| Templates`
	`4`	`+ * and open the template in the editor.`
	`5`	`+ */`
	`6`	`+`
	`7`	`+/**`
	`8`	`+ *`
	`9`	`+ * @author chandrikadeb`
	`10`	`+ */`
	`11`	`+import java.io.*;`
	`12`	`+import java.util.*;`
	`13`	`+public class ArrayListEx`
	`14`	`+{`
	`15`	`+ public static void main(String[] args) throws IOException`
	`16`	`+ {`
	`17`	`+ // size of ArrayList`
	`18`	`+ int n = 5,num,del;`
	`19`	`+`
	`20`	`+ //declaring ArrayList with initial size n`
	`21`	`+ ArrayList<Integer> arrli = new ArrayList<Integer>(n);`
	`22`	`+`
	`23`	`+ // Appending the new element at the end of the list`
	`24`	`+ System.out.println("Enter number of elements to add");`
	`25`	`+ Scanner sc=new Scanner(System.in);`
	`26`	`+ num=sc.nextInt();`
	`27`	`+ System.out.println("Enter "+num+" elements one by one:");`
	`28`	`+ for(int i=0;i<num;i++)`
	`29`	`+ {`
	`30`	`+ i=sc.nextInt();`
	`31`	`+ arrli.add(i);`
	`32`	`+ }`
	`33`	`+ // Printing elements`
	`34`	`+ System.out.println("After adding elements:"+arrli);`
	`35`	`+`
	`36`	`+ // Remove element at index 3`
	`37`	`+ System.out.println("Enter index of element to remove:");`
	`38`	`+ del=sc.nextInt();`
	`39`	`+ arrli.remove(del);`
	`40`	`+`
	`41`	`+ // Displaying ArrayList after deletion`
	`42`	`+ System.out.println("After deleting " +del+ "th element we get:" +arrli);`
	`43`	`+`
	`44`	`+ // Printing index`
	`45`	`+ System.out.println(del);`
	`46`	`+ }`
	`47`	`+}`

Lines changed: 34 additions & 0 deletions

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	`1`	`+/*`
	`2`	`+ * To change this license header, choose License Headers in Project Properties.`
	`3`	`+ * To change this template file, choose Tools \| Templates`
	`4`	`+ * and open the template in the editor.`
	`5`	`+ */`
	`6`	`+`
	`7`	`+/**`
	`8`	`+ *`
	`9`	`+ * @author chandrikadeb`
	`10`	`+ */`
	`11`	`+import java.util.*;`
	`12`	`+public class HashMapJava {`
	`13`	`+ public static void main(String[] args) {`
	`14`	`+`
	`15`	`+ HashMap <Integer,String> map = new HashMap<Integer,String>();`
	`16`	`+ Scanner in = new Scanner(System.in);`
	`17`	`+ System.out.println("Enter 3 key-value (integer-string) pairs one by one:");`
	`18`	`+ for(int i=0;i<3;i++){`
	`19`	`+`
	`20`	`+ Integer a=in.nextInt();`
	`21`	`+ String b=in.next();`
	`22`	`+`
	`23`	`+ map.put(a,b);`
	`24`	`+ }`
	`25`	`+`
	`26`	`+ // Get keys and values`
	`27`	`+ for (Map.Entry<Integer, String> entry : map.entrySet()) {`
	`28`	`+ Integer k = entry.getKey();`
	`29`	`+ String v = entry.getValue();`
	`30`	`+ System.out.println("Key: " + k + ", Value: " + v);`
	`31`	`+ }`
	`32`	`+ }`
	`33`	`+}`
	`34`	`+`

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