57 lines
1.7 KiB
Java
57 lines
1.7 KiB
Java
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/*
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This is the java implementation of classic Bin-Packing algorithm. In the bin packing problem, objects of different volumes must be packed into a finite number of bins or containers each of volume V in a way that minimizes the number of bins used. In computational complexity theory, it is a combinatorial NP-hard problem.
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*/
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//This is a sample program to illustrate the Bin-Packing algorithm using next fit heuristics
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import java.util.Scanner;
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public class Bin_Packing_Algorithm
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{
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public static void binPacking(int []a, int size, int n)
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{
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int binCount=1;
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int s = size;
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for(int i=0; i<n; i++)
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{
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if(s - a[i] > 0)
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{
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s -= a[i];
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continue;
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}
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else
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{
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binCount++;
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s = size;
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i--;
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}
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}
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System.out.println("Number of bins required: "+binCount);
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}
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public static void main(String args[])
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{
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System.out.println("BIN - PACKING Algorithm");
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System.out.println("Enter the number of items in Set: ");
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Scanner sc = new Scanner(System.in);
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int n = sc.nextInt();
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System.out.println("Enter "+n+" items:");
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int []a = new int[n];
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for(int i=0; i<n; i++)
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a[i] = sc.nextInt();
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System.out.println("Enter the bin size: ");
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int size = sc.nextInt();
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binPacking(a, size, n);
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sc.close();
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}
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}
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/*
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BIN - PACKING Algorithm
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Enter the number of items in Set:
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8
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Enter 8 items:
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4 5 8 3 4 5 1 6
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Enter the bin size:
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10
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Number of bins required: 5
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