22: Seach an Element from an Array Explain in detail in English how the following search method works? public static int search(int aNum, int[] X) int n = X.length; int i-0; while(isn && X[i] ! aNum) i+; if(i n) return -1; //It means not found else return i;
22: Seach an Element from an Array Explain in detail in English how the following search method works? public static int search(int aNum, int[] X) int n = X.length; int i-0; while(isn && X[i] ! aNum) i+; if(i n) return -1; //It means not found else return i;
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
Related questions
Question
Q2: How do you know it break down the loop? which one is control it? Telling the detail.
![**Array's View, Search, and Update**
**Q1: Print an Array**
Explain in detail in English how the following `outputArr` method works.
```java
public static void outputArr(int[] X) {
int n = X.length;
for (int i = 0; i < n-1; i++)
System.out.printf("%4d", X[i]);
System.out.println(X[n-1]);
}
```
**Q2: Search an Element from an Array**
Explain in detail in English how the following search method works.
```java
public static int search(int aNum, int[] X) {
int n = X.length;
int i = 0;
while (i < n && X[i] != aNum)
i++;
if (i == n) return -1; // it means not found
else return i;
}
```
**Q3: Update an Element**
Array:
`2 4 6 8 10 12 14 16 18 -1`
Indices:
`0 1 2 3 4 5 6 7 8 9`
Write a Java statement to change the element 10 to 100.
**Q4: Insert an Element**
Array:
`2 4 6 8 100 12 14 16 18 -1`
Indices:
`0 1 2 3 4 5 6 7 8 9`
If the last element (-1) means an empty cell, how do you insert 50 before the element 100? Write a set of Java code and explain it in English.
**Q5: Delete an Element**
Array:
`2 4 6 8 50 100 12 14 16 18`
Indices:
`0 1 2 3 4 5 6 7 8 9`
How do you delete the element 4 from the above array? Write a set of Java code and explain it in English.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fdc7af1f5-b041-422e-a7e0-fe3bd054e9c0%2F846158f1-dae4-47dc-a8de-b9fd5a890d41%2Fkxy02qr_processed.jpeg&w=3840&q=75)
Transcribed Image Text:**Array's View, Search, and Update**
**Q1: Print an Array**
Explain in detail in English how the following `outputArr` method works.
```java
public static void outputArr(int[] X) {
int n = X.length;
for (int i = 0; i < n-1; i++)
System.out.printf("%4d", X[i]);
System.out.println(X[n-1]);
}
```
**Q2: Search an Element from an Array**
Explain in detail in English how the following search method works.
```java
public static int search(int aNum, int[] X) {
int n = X.length;
int i = 0;
while (i < n && X[i] != aNum)
i++;
if (i == n) return -1; // it means not found
else return i;
}
```
**Q3: Update an Element**
Array:
`2 4 6 8 10 12 14 16 18 -1`
Indices:
`0 1 2 3 4 5 6 7 8 9`
Write a Java statement to change the element 10 to 100.
**Q4: Insert an Element**
Array:
`2 4 6 8 100 12 14 16 18 -1`
Indices:
`0 1 2 3 4 5 6 7 8 9`
If the last element (-1) means an empty cell, how do you insert 50 before the element 100? Write a set of Java code and explain it in English.
**Q5: Delete an Element**
Array:
`2 4 6 8 50 100 12 14 16 18`
Indices:
`0 1 2 3 4 5 6 7 8 9`
How do you delete the element 4 from the above array? Write a set of Java code and explain it in English.
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