Link BD consists of a single bar 30 mm wide and 12 mm thick. Knowing that each pin has a10 mm diameter, determine the maximum value of the average normal stress in the link BD if θ = 15 degrees.

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Question:

1. Using the NetBeans IDE make a new project to modify the SmallO.java program (file attached) so that it now repeats the loop five times and then stops.

2. Using the IDE make a new project to modify the SmallO.java program (file attached) so that integers instead of Strings are entered by the user.

 

3. Using the IDE make a new project to modify the SmallO.java program (file attached) so that it only loops until the number -999 is entered by the user.

NOTE: SmallO.java file image attached

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Answer:

Step 1

The original program is as follows.

 

ORIGINAL PROGRAM

import java.util.Scanner;

public class SmallIO
{
 public static void main(String[] args) {
     
     Scanner keyboard = new Scanner(System.in);
     String a = "";   //initializing to empty String
     
     //infinite loop, use Ctrl-C (from command prompt) to quit
    while(true)
     { 
         System.out.println("Enter a line: ");
         a = keyboard.nextLine();
         System.out.println("Your line: "+ a);
         System.out.println();
     }   //loop ends
 }   // main ends
}   // class ends

Step 2

1. Using the NetBeans IDE make a new project to modify the SmallIO.java program (file attached) so that it now repeats the loop five times and then stops.

 

The java program is as follows.

 

PROGRAM

import java.util.*;
import java.lang.*;

public class SmallIO
{
 public static void main(String[] args) {
     
     Scanner keyboard = new Scanner(System.in);
     String a = "";   //initializing to empty String
     int loop=0;     //variable to control loop execution
     
     //loop executes 5 times
     while(loop<5)
     {
         System.out.println("Enter a line: ");
         a = keyboard.nextLine();
         System.out.println("Your line: "+ a);
         System.out.println();
         
         loop++;     //loop variable incremented
     }   //loop ends
 }   // main ends
}   // class ends

Step 3

2. Using the IDE make a new project to modify the SmallIO.java program (file attached) so that integers instead of Strings are entered by the user.

 

The java program is as follows.

 

PROGRAM

import java.util.*;
import java.lang.*;

public class SmallIO
{
 public static void main(String[] args) {
     
     Scanner keyboard = new Scanner(System.in);
     int n;   //declaring an integer variable
    
     
     //infinite loop, use Ctrl-C (from command prompt) to quit
     while(true)
     {
         System.out.println("Enter a number: ");
         n = keyboard.nextInt();
         System.out.println("Your number: "+ n);
         System.out.println();
         
     }   //loop ends
 }   // main ends
}   // class ends

Step 4

3. Using the IDE make a new project to modify the SmallIO.java program (file attached) so that it only loops until the number -999 is entered by the user.

 

The java program is as follows.

 

PROGRAM

import java.util.*;
import java.lang.*;

 

public class SmallIO
{
 public static void main(String[] args) {
     
     Scanner keyboard = new Scanner(System.in);
     String a = "";   //initializing to empty String
     
     int n=1;    //variable to test if -999 is entered
     
     //infinite loop, use Ctrl-C (from command prompt) to quit
    while(n!=-999)
     { 
         System.out.println("Enter a line: ");
         a = keyboard.nextLine();
         System.out.println("Your line: "+ a);
         System.out.println();
       
         System.out.println("Enter -999 to quit. Enter any other number to continue.");
         n = keyboard.nextInt();
         if(n==-999)
         {
             System.out.println("Exiting."); break;
         }
     }   //loop ends
 }   // main ends
}   // class ends