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//ArrayCombine.java
 
class ArrayCombine{
	public static int combine(int[] array1, int[] array2){
		int[] newArray = new int[array1.length + array2.length];
		int curPos;
		for(int i = 0; i < newArray.length - 3; i++){
			newArray[curPos] = array1[i];
			curPos++;
 
		}
		for(int j = 0; j < newArray.length - 3; j++){
			newArray[curPos] = array2[j];
			curPos++;
 
		}
		return newArray;
	}
	public static void main(String args[]){
 
		int[] array1 = { 1, 2, 3 };
		int[] array2 = { 4, 5, 6 };
		int[] newArray = combine(array1, array2);
		System.out.println(newArray);
	}
}

Main.java:17: incompatible types
found   : int[]
required: int
		return newArray;
		       ^
Main.java:23: incompatible types
found   : int
required: int[]
		int[] newArray = combine(array1, array2);
		                        ^
2 errors

Standard output is empty