Software Engineering

4. While Loops public class App { public static void main(String[] args) { int process =0;                                               //process starts at 0 while(process<=10){                    //process validation (whlie statement) System.out.println("ID: "+ value);  //Output process as ID process= process+1;                     // process increase by 1 } } } Output: ID: 0  ID: 1  ID: 2  ID: 3  ID: 4  ID: 5  ID: 6  ID: 7  ID: 8 ID: 9  ID: 10

3. Scanner import java.util.Scanner; public class App{ public static void main(String[] args) { //create scanner object Scanner input = new Scanner(System.in); //output the prompt System.out.println("Enter a number: "); //wait for the user to enter a number int num = input.nextInt();         //output System.out.println("you entered: "+num); } } Output : User Input Note:1. For: String line = input.nextLine(); and  Double value = input.nextDouble(); And 2. Always save java program as (In this case: App.java) class name.java.

2.  Integer public class App{ public static void main(String[] args) { int randomNum; randomNum=211; System.out.println(randomNum); } } Output: 211

1. First program Install java and Eclipse Then follow the Steps: File-New-Java Project- Enter Project Name- Finish Go to Project Name you Entered -File-New Class- Application public class Application {                                        //Class name same as java file name public static void main(String[] args) {           //Main method String text ="Hello World !";                 //String data type System.out.println(text);                        //print method } } OUTPUT:  Hello World !

System permissions are divided into several protection levels. The two most important protection levels to know about are normal and dangerous permissions: Normal permissions cover areas where your app needs to access data or resources outside the app's sandbox, but where there's very little risk to the user's privacy or the operation of other apps. For example, permission to set the time zone is a normal permission. If an app declares that it needs a normal permission, the system automatically grants the permission to the app. For a full listing of the current normal permissions, see Normal permissions . Dangerous permissions cover areas where the app wants data or resources that involve the user's private information, or could potentially affect the user's stored data or the operation of other apps. For example, the ability to read the user's contacts is a dangerous permission. If an app declares that it needs a dangerous permission, the user has to explic