Prentice.Hall.Introduction.to.Java.Programming,.Brief.Version.9th.(2014).[sharethefiles.com]

These errors often occur when you use the next-line block style. Using the end-of-line
block style can avoid errors of this type.
In the case of the do-while loop, the semicolon is needed to end the loop.
int i = 0;
do {
System.out.println("i is " + i);
i++;
} while (i < 10);
4.5 Which Loop to Use? 151
Correct
4.15 Can you convert a for loop to a while loop? List the advantages of using for loops.
4.16 Can you always convert a while loop into a for loop? Convert the following while
loop into a for loop.
✓Point✓ Check
int i = 1;
int sum = 0;
while (sum < 10000) {
sum = sum + i;
i++;
}
4.17 Identify and fix the errors in the following code:
1 public class Test {
2 public void main(String[] args) {
3 for (int i = 0; i < 10; i++);
4 sum += i;
5
6 if (i < j);
7 System.out.println(i)
8 else
9 System.out.println(j);
10
11 while (j < 10);
12 {
13 j++;
14 }
15
16 do {
17 j++;
18 } while (j < 10)
19 }
20 }
4.18 What is wrong with the following programs?
1 public class ShowErrors {
2 public static void main(String[] args) {
3 int i;
4 int j = 5;
5
6 if (j > 3)
7 System.out.println(i + 4);
8 }
9 }
1 public class ShowErrors {
2 public static void main(String[] args) {
3 for (int i = 0; i < 10; i++);
4 System.out.println(i + 4);
5 }
6 }
(a)
(b)