nomor 4 pertemuan 3

package pertemuan3;
public class nomor4{
        public static void nomor4 (
        int arr[], int awal, int akhir, int key){
        int tengah = (awal + akhir)/2;
            while( awal <= akhir ){
                if ( arr[tengah]< key ){
                    awal = tengah + 1;
                }else if ( arr[tengah] == key ){
                    System.out.printf("\nBerada di Index ke-" + tengah);
                    break;
                }else{
                    akhir = tengah - 1;
                }
                tengah = (awal + akhir)/2;
            }
            if ( awal > akhir ){
                System.out.println("\nElement is not found!");
            }
    }
    public static void nomor4(int[] arr, int temp){
        for(int i = 0; i<arr.length-1; i++) {
            for(int j=0; j<arr.length-i-1; j++){
                if(arr[j]>arr[j+1]){
                        temp = arr[j];
                        arr[j] = arr[j+1];
                        arr[j+1] = temp;
                }
            }
        }
    }
    public static void main (String[]args){
        int arr1[] = {19, 22, 89, 26, 77, 20, 24, 56, 8, 4, 92, 93, 10};
        int key = 24;
        int akhir = arr1.length-1;
        System.out.println("Data Setelah Diurutkan");
         for(int i:arr1){
            System.out.print(i+" ");
         }
        System.out.printf("\nElement yang Dicari: %d",key);
        nomor4(arr1,0,akhir,key);
    }
}