Example usage for java.util Arrays binarySearch

Introduction

In this page you can find the example usage for java.util Arrays binarySearch.

Prototype

public static int binarySearch(Object[] a, Object key)

Source Link

Document

Searches the specified array for the specified object using the binary search algorithm.

Usage

From source file:Main.java

public static void main(String[] args) {

    // initializing sorted int array
    int intArr[] = { 10, 20, 25, 32, 55 };

    // value to search
    int searchVal = 32;

    int retVal = Arrays.binarySearch(intArr, searchVal);

    System.out.println("The index of element 32 is : " + retVal);
}

From source file:Main.java

public static void main(String[] args) {

    // initializing sorted array
    Object arr[] = { 1, 2, 22, 69, 111, 222 };

    // value to search
    int searchVal = 22;

    int retVal = Arrays.binarySearch(arr, searchVal);

    System.out.println("The index of element 22 is : " + retVal);
}

From source file:Main.java

public static void main(String[] argv) throws Exception {

    // Create an array with an ordered list of numbers
    int[] sortedIntArray = new int[] { 1, 2, 3, 5, 7 };

    // Search for 6
    int index = Arrays.binarySearch(sortedIntArray, 6);
    System.out.println(index);/*from   w w w .j a  v  a2 s .  c o m*/
}

From source file:Main.java

public static void main(String[] args) {

    // initializing sorted short array
    short shortArr[] = { 1, 2, 15, 52, 110 };

    // value to search
    short searchVal = 15;

    int retVal = Arrays.binarySearch(shortArr, searchVal);

    System.out.println("The index of element 15 is : " + retVal);
}

From source file:Main.java

public static void main(String[] args) {

    // initializing sorted char array
    char charArr[] = { 'a', 'c', 'd', 'e', 'f' };

    // value to search
    char searchVal = 'e';

    int retVal = Arrays.binarySearch(charArr, searchVal);

    System.out.println("The index of e is : " + retVal);
}

From source file:Main.java

public static void main(String[] args) {

    // initializing sorted byte array
    byte byteArr[] = { 10, 20, 22, 35, 66 };

    // the value to be searched
    byte searchVal = 35;

    int retVal = Arrays.binarySearch(byteArr, searchVal);

    System.out.println("The index of element 35 is : " + retVal);
}

From source file:Main.java

public static void main(String[] args) {

    // initializing sorted float array
    float floatArr[] = { 5.2f, 5.3f, 5.9f, 6.3f };

    // value to search
    float searchVal = 6.3f;

    int retVal = Arrays.binarySearch(floatArr, searchVal);

    System.out.println("The index of element 6.3 is : " + retVal);
}

From source file:Main.java

public static void main(String[] args) {

    // initializing sorted double array
    double doubleArr[] = { 5.4, 5.5, 9.2, 9.3, 35.4 };

    // value search
    double searchVal = 5.4;

    int retVal = Arrays.binarySearch(doubleArr, searchVal);

    System.out.println("The index of element 5.4 is : " + retVal);
}

From source file:MainClass.java

public static void main(String args[]) throws Exception {
    int array[] = { 2, 5, -2, 6, -3, 8, 0, -7, -9, 4 };
    Arrays.sort(array);/*from ww w . ja  v a  2s .  c  o m*/
    printArray("Sorted array", array);
    int index = Arrays.binarySearch(array, 2);
    System.out.println("Found 2 @ " + index);
    index = Arrays.binarySearch(array, 1);
    System.out.println("Didn't find 1 @ " + index);
    int newIndex = -index - 1;
    array = insertElement(array, 1, newIndex);
    printArray("With 1 added", array);
}

From source file:Main.java

public static void main(String[] argv) throws Exception {

    // Create an array with an ordered list of strings
    String[] sortedArray = new String[] { "ant", "bat", "cat", "dog" };

    // Search for the word "cat"
    int index = Arrays.binarySearch(sortedArray, "cat"); // 2

    // Search for a non-existent element
    index = Arrays.binarySearch(sortedArray, "cow"); // -4
}