Java 打印有序二维阵列-单行
我正在尝试编写嵌套for循环,该循环将按特定顺序打印以下代码的值:Java 打印有序二维阵列-单行,java,arrays,2d,Java,Arrays,2d,我正在尝试编写嵌套for循环,该循环将按特定顺序打印以下代码的值: public static void main(String[] args) { int[][] array2d = new int[3][5]; for (int i = 0; i < array2d.length; i++) { for (int j = 0; j < array2d[0].length; j++) { array2d[i][j] = (i
public static void main(String[] args) {
int[][] array2d = new int[3][5];
for (int i = 0; i < array2d.length; i++) {
for (int j = 0; j < array2d[0].length; j++) {
array2d[i][j] = (i * array2d[0].length) + j + 1;
}
}
for (int x = 0; x <= 4; x++) {
for (int y = 0; y <= 2; y++) {
System.out.println(array2d[y][x]);
}
}
}
谢谢您的帮助。将
println
替换为print
,它应该可以工作您可以使用System.out.print
:
System.out.print(array2d[y][x] + " ");
String s=”“;
for(int i=0;i
公共静态void main(字符串[]args){
int[]array2d=新int[3][5];
for(int i=0;i for(int x=0;x for循环是反向的,因此这不会产生正确的结果。我还建议使用StringBuilder
而不是字符串串联。
System.out.print(array2d[y][x] + " ");
String s = "";
for (int i = 0; i < array2d.length; i++) {
for (int j = 0; j < array2d[i].length; j++) {
s += array2d[i][j] + " ";
}
}
System.out.println(s);
public static void main(String[] args) {
int[][] array2d = new int[3][5];
for (int i = 0; i < array2d.length; i++) {
for (int j = 0; j < array2d[0].length; j++) {
array2d[i][j] = (i * array2d[0].length) + j + 1;
}
}
StringBuilder builder = new StringBuilder();
for (int x = 0; x <= 4; x++) {
for (int y = 0; y <= 2; y++) {
builder.append(array2d[y][x]);
if(!(x == 4 && y == 2)){
builder.append(" ");
}
}
}
System.out.println(builder.toString());
}