Convert array to set
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
public class Main {
public static <T> Set<T> toSet(T... objects) {
Set<T> theSet = new HashSet<T>();
addToCollection(theSet, objects);
return theSet;
}
public static <T> List<T> toList(T... objects) {
List<T> theSet = new ArrayList<T>();
addToCollection(theSet, objects);
return theSet;
}
private static <T> void addToCollection(Collection<T> theCollection, T... objects) {
for (T object : objects) {
theCollection.add(object);
}
}
}
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Java Book
Runnable examples
Java Book
Runnable examples
Data Type Array:
- Append item to array
- Append an object to an array.
- Append one array to another
- Clone Array
- Clones two dimensional float array
- Compare two arrays by reference
- Compare Two byte Arrays
- Compare Two boolean Arrays
- Compare Two char Arrays
- Compare Two double Arrays
- Compare Two float Arrays
- Compare Two int Arrays
- Compare Two long Arrays
- Compare two object arrays
- Compare Two short Arrays
- Compare two two-dimensional array
- Concatenate arrays
- Convert array to set
- Convert string array to string
- Convert string array to List
- Convert multi-dimensional array to string
- Convert an array to a Map
- Copy array
- Copy Elements from One Array to Another
- Copy and add an array at the end of the new array
- Extend an array with additional extra space
- Extend to Double the size of an array
- Fill boolean, byte, char,short, int, long, float array
- Get array upperbound
- Get the number of dimensions
- Insert an Element into a Sorted Array
- Insert the specified element at the specified position in the array
- Insert source array in the target array at offset
- Maximum value in an array
- Minimum value in an array.
- Merge two arrays
- Remove duplicate element from array
- Remove the element at the specified position from the specified array.
- Reverses the order of an array(byte, long, int)
- Search an element in an array and return the index and last index
- Binary Search on an Array
- Shift all elements right by one
- Shift all elements left by one
- Shuffle an array
- Sort byte(char,double, float, int) Array
- Sort char array
- Sort int Array
- Sort long Array
- Sort short Array
- Sort string type array in case insensitive order and case sensitive order
- Sort an Array in Descending (Reverse) Order
- Start with one array
- Subarray from array that starts at offset