Question

我从java开始，我正在寻找如何创建一个数组2d的字符串：我的数组2d应该包含：

10 20 "OK"
5  30 "KO"
20 100 "NA"
10 60  "OK"

String[][] matrix = new String[i][j];
for(r=0;i<matrix.length; r++) {
 for (int c=0; c<matrix [r].length; c++) {
     System.out.print("10 " + matrix [r][c]);
 }

Answer 1

String[][] matrix = { {"10","20","OK"},{"5","30","KO"}, {"20","100","NA"}, {"10","60","OK"} };

Answer 2

Florin说的是什么，但是简化了for循环：

String [][] matrix =  { {"10","20","OK"}, {"5","30","KO"}, {"20","100","NA"}, {"10","60","OK"} };

for (String [] line : matrix) {
    for (String s: line) {
        System.out.print ("10 " + s);
    }
}

Answer 3

一切似乎都很好。也许你可以更好地利用java中的每个循环：

String[][] matrix = new String[i][j];
for( String[] rows : matrix) {
 for (String row : rows ) {
     System.out.println("10 " + row );
 }

此致斯特凡

Answer 4

@Jigar说什么

String[][] matrix = { {"10","20","OK"},{"5","30","KO"}, {"20","100","NA"}, {"10","60","OK"} };

Plus print：

for(r=0;i<matrix.length; r++) {
 for (int c=0; c<matrix [r].length; c++) {
     System.out.print(matrix [r][c] + " ");
 }
 System.out.println();
}

java：创建一个字符串矩阵

4 个答案: