방법 1 (정식)

int[] students;
students = new int[];
		students[0] = 1;
        students[1] = 2;
        students[2] = 3;
        students[3] = 4;
        students[4] = 5;

방법 2

int[] students;
students = new int[]{1,2,3,4,5};

방법 3

int[] students = new int[]{1,2,3,4,5};

방법 4

int[] students={1,2,3,4,5};

자바 내부에서 new int[] 생성.

오류

int[] students;
students={1,2,3,4,5};

이렇게는 불가능.