Java 2d String数组填充数组

Question

String[][] work = new String[3][];

thats work

    work[0] = new String[3];
    work[0][0]=" !!! ";
    work[0][1]=" !!! ";
    work[0][2]=" !!! ";
    work[1] = new String[3];
    work[1][0]=" !!! ";
    work[1][1]=" !!! ";
    work[1][2]=" !!! ";
    work[2] = new String[3];
    work[2][0]=" !!! ";
    work[2][1]=" !!! ";
    work[2][2]=" !!! ";

thats dont work for me i dont know where is mistake Exception in thread "AWT-EventQueue-0" java.lang.ArrayIndexOutOfBoundsException: 3

for(int i=0;i<13;i++){
            work[i]= new String[3];
        }
        for(int i=0;i<13;i++){
            for(int j=0;j<3;j++){
                work[i][j]=" !!! ";
            }
        }
        for(String[] x: work){
            for(String e : x){
                System.out.println(e);
            }System.out.println();
        }

mistake is here String[][] work = new String[13][]; 3->13

Answer 1

You should change

for(int i=0;i<13;i++) {

to

for(int i=0;i<work.length;i++) {

This will save you from similar typos.