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HashMap.java

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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();

}

}

}