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HashMap.java
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39 lines (32 loc) · 737 Bytes
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class HashMap {
private int hsize;
private LinkedList[] buckets;
public HashMap(int hsize) {
buckets = new LinkedList[hsize];
for (int i = 0; i < hsize ; i++ ) {
buckets[i] = new LinkedList();
// Java requires explicit initialisaton of each object
}
this.hsize = hsize;
}
public int hashing(int key) {
int hash = key % hsize;
if(hash < 0)
hash += hsize;
return hash;
}
public void insertHash(int key) {
int hash = hashing(key);
buckets[hash].insert(key);
}
public void deleteHash(int key) {
int hash = hashing(key);
buckets[hash].delete(key);
}
public void displayHashtable() {
for (int i = 0;i < hsize ; i++) {
System.out.printf("Bucket %d :",i);
buckets[i].display();
}
}
}