48 lines
1.1 KiB
Java
48 lines
1.1 KiB
Java
import java.util.Scanner;
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public class LinearSearch{
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//Main method
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public static void main(String[] args){
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Scanner input = new Scanner(System.in);
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int[] myArray;
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int size = 0;
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//Prompt user to create array and its elements
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System.out.print("Enter the array size: ");
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size = input.nextInt();
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myArray = new int[size];
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for (int i = 0; i < size; i++){
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System.out.print("For index " + i + ", enter an integer: ");
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myArray[i] = input.nextInt();
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}
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//Prompt user to search for particular element
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System.out.print("Enter integer to search for: ");
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int key = input.nextInt();
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//Output array and index of target element, if found
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printarray(myArray);
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System.out.printf("The integer %d is found in index %d\n", key, linearsearch(myArray, key));
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}
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//Linear search method
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public static int linearsearch(int[] list, int key){
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for (int i = 0; i< list.length; i++){
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if (list[i] == key){
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return i;
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}
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} return -1;
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}
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//Helper method
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public static void printarray(int[] a){
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System.out.print("The array is: ");
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for( int d: a){
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System.out.print(d+" ");
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}
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System.out.println();
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}
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} |