3 files changed, 66 insertions, 0 deletions
diff --git a/src/Java/gtPlusPlus/core/util/array/ArrayUtils.java b/src/Java/gtPlusPlus/core/util/array/ArrayUtils.java
new file mode 100644
index 0000000000..ea02aaf1da
--- /dev/null
+++ b/src/Java/gtPlusPlus/core/util/array/ArrayUtils.java
@@ -0,0 +1,18 @@
+package gtPlusPlus.core.util.array;
+
+import java.util.Arrays;
+
+public class ArrayUtils {
+
+	public static void expandArray(Object[] someArray, Object newValueToAdd) {
+		Object[] series = someArray;
+	    series = addElement(series, newValueToAdd);
+	}
+
+	private static Object[] addElement(Object[] series, Object newValueToAdd) {
+	    series  = Arrays.copyOf(series, series.length + 1);
+	    series[series.length - 1] = newValueToAdd;
+	    return series;
+	}
+	
+}
diff --git a/src/Java/gtPlusPlus/core/util/array/Pair.java b/src/Java/gtPlusPlus/core/util/array/Pair.java
new file mode 100644
index 0000000000..94437e6779
--- /dev/null
+++ b/src/Java/gtPlusPlus/core/util/array/Pair.java
@@ -0,0 +1,21 @@
+package gtPlusPlus.core.util.array;
+
+public class Pair<K,V> { 
+	
+	private final K key; 
+	private final V value; 
+	
+	public Pair(final K key, final V value){
+		this.key = key;
+		this.value = value;
+	}
+	
+	final public K getKey(){
+		return key; 
+		} 
+	
+	final public V getValue(){
+		return value; 
+		}	
+
+}
+\ No newline at end of file
diff --git a/src/Java/gtPlusPlus/core/util/array/Triplet.java b/src/Java/gtPlusPlus/core/util/array/Triplet.java
new file mode 100644
index 0000000000..07f29ae6c8
--- /dev/null
+++ b/src/Java/gtPlusPlus/core/util/array/Triplet.java
@@ -0,0 +1,27 @@
+package gtPlusPlus.core.util.array;
+
+public class Triplet<K,V,C> { 
+	
+	private final K key; 
+	private final V value; 
+	private final C count;
+	
+	public Triplet(final K key, final V value, final C value2){
+		this.key = key;
+		this.value = value;
+		this.count = value2;
+	}
+	
+	final public K getKey(){
+		return key; 
+		} 
+	
+	final public V getValue(){
+		return value; 
+		}
+	
+	final public C getSecondValue(){
+		return count; 
+		}	
+
+}
+\ No newline at end of file