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은은하게미친자 2022. 10. 2. 02:06
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        int[] na= {1,2,3,3,4,5};
        int[] na2 = new int[3];
        
        for (int i= 0;i<na2.length;i++) {
            na2[i] = i;
        }
        System.out.println(Arrays.toString(na2));
 cs

 

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class code1_array {
    public static void main(String[] args) {
        System.out.println("array test");
 
        int[] arr1= {1,2,3,5,4,7,8,1,2};
        String[] arr2;
        int[] arr3= new int[]{7,7,7};
        int[][] arr4= {{1,1,1},{2,2,2},{3,3,3,4}};
        
        //출력하기
        System.out.println("arr1 " + Arrays.toString(arr1));
        System.out.println("arr3 " + Arrays.toString(arr3));
        System.out.println("arr4 " + Arrays.toString(arr4[0]));
        System.out.println("arr4 " + Arrays.toString(arr4[1]));
        System.out.println("arr4 " + Arrays.toString(arr4[2]));
        System.out.println(arr4.length);
        System.out.println(arr4[2].length);
        
        arr2 = new String[3];
        arr2[0] = "0";
        arr2[0] = "0";
 
    }
}
 
 
 
 cs
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