raghavBakshee
diff --git a/‎bin/JavaSessions/DynamicArray.class‎
1.8 KB b/‎bin/JavaSessions/DynamicArray.class‎
1.8 KB
diff --git a/‎bin/JavaSessions/StringManipulation.class‎
2.37 KB b/‎bin/JavaSessions/StringManipulation.class‎
2.37 KB
diff --git a/‎src/JavaSessions/DynamicArray.java‎
Lines changed: 49 additions & 0 deletions b/‎src/JavaSessions/DynamicArray.java‎
Lines changed: 49 additions & 0 deletions
diff --git a/‎src/JavaSessions/StringManipulation.java‎
Lines changed: 65 additions & 0 deletions b/‎src/JavaSessions/StringManipulation.java‎
Lines changed: 65 additions & 0 deletions
@@ -0,0 +1,49 @@
+package JavaSessions;
+
+import java.util.ArrayList;
+
+public class DynamicArray {
+
+	public static void main(String[] args) {
+
+		//ArrayList
+		ArrayList ar = new ArrayList();
+		ar.add(100);//0
+		ar.add(200);//1
+		ar.add("Hello");//2
+		ar.add('m');//3
+		ar.add(12.33);//4
+		ar.add(true);//5
+		
+		System.out.println(ar.size());
+		
+		ar.add(300);//6
+		ar.add(400);//7
+		
+		System.out.println(ar.size());
+		ar.add(4, 22.33);
+		System.out.println(ar.get(4));
+
+		System.out.println(ar.get(1));
+		//System.out.println(ar.get(8));//IndexOutOfBoundsException
+		
+		//to print all the values of arraylist: use for loop:
+		for(int i=0; i<ar.size(); i++){
+			System.out.println(ar.get(i));
+		}
+		
+		ar.remove(6);
+		System.out.println("the value of 6th position:"+ ar.get(6));
+		
+		ar.add("Naveen");//7
+		
+		//Generics:
+		ArrayList<Integer> ar1 = new ArrayList<Integer>();
+		ar1.add(100);
+		
+		ArrayList<String> ar2 = new ArrayList<String>();
+		ar2.add("Hello");
+		
+	}
+
+}
@@ -0,0 +1,65 @@
+package JavaSessions;
+
+public class StringManipulation {
+
+	public static void main(String[] args) {
+
+		String s = "The rains have started here";
+		
+		System.out.println(s.length());
+		
+		System.out.println(s.charAt(5));
+		System.out.println(s.charAt(26));
+		//System.out.println(s.charAt(27));//StringIndexOutOfBoundsException
+		
+		System.out.println(s.indexOf('a'));
+		System.out.println(s.indexOf('s'));//8 -- 1st occurrence of s
+		System.out.println(s.indexOf('s', s.indexOf('s')+1));//15 -- 2nd occurrence of s
+		
+		System.out.println(s.indexOf("have"));
+		System.out.println(s.indexOf("hello")); //-1
+		
+		String s1 = "The rains Have started here";
+		System.out.println(s.equals(s1));
+		System.out.println(s.equalsIgnoreCase(s1));
+		
+		//trim:
+		String str = "     Hello   World   ";
+		System.out.println(str.trim());
+		
+		//replace:
+		String date = "01-01-2018"; //01/01/2018
+		System.out.println(date.replace('-', '/'));
+		
+		String s3 = "Hello World";
+		System.out.println(s3.replace(" ",""));
+		
+		//sub string:
+		String s4 = "The rains have started here";
+		System.out.println(s4.substring(0, 9));
+
+		//split:
+		String s5 = "Hello_Selenium_Testing";
+		String arr[] = s5.split("_");
+		System.out.println(arr[0]);
+		System.out.println(arr[1]);
+		System.out.println(arr[2]);
+		
+		String h = "XxTestXxTestXxXtesting";
+		String d[] = h.split("Xx");
+		for(int i=0; i<d.length; i++){
+			System.out.println(i+"-->"+d[i]);
+		}
+
+		String firstName = "Tom;Naveen;Felix;Ipsi;Sharmi";
+		String firstName1[] = firstName.split(";");
+		for(int i=0; i<firstName1.length; i++){
+			System.out.println(firstName1[i]);
+			
+		}
+		
+		
+		
+	}
+
+}