求帮助编写一个java程序定义一个二行三列整形二维数组对数组中每一个元素赋值0-100随机整数，然 java从键盘输入6个小数,给定义的两行三列二维数组赋值,并...
java\u5b9a\u4e49\u7684\u4e00\u4e2a2\u884c2\u5217\u7684\u4e8c\u7ef4\u6570\u7ec4\u6bcf\u884c\u7684\u5143\u7d20,\u5e76\u8ba1\u7b97\u6240\u6709\u5143\u7d20\u7684\u548c\u5e76\u8f93\u51fapackage test;import java.util.Random;public class ArrayTest {public static void main(String[] args) {int y = 2, x = 2;int[][] data = new int[y][x];Random r = new Random();int index = 0;do {data[index / x][index % x] = r.nextInt();} while (++index < x * y);int sum = 0;for (int[] is : data) {for (int i : is) {System.out.print(i + "\t");sum += i;}}System.out.println("sum=" + sum);}}
import java.util.Scanner;
public class Main {
public static void main(String[] args){
Scanner sc = new Scanner(System.in);
int[][] array = new int[3][2];
int sum = 0;
for(int x = 0;x < 3;x++){
for(int y = 0;y < 2;y++){
array[x][y] = sc.nextInt();
sum += array[x][y];
}
}
System.out.println(sum);
}
}
package com.pzr.demo;
import java.util.Arrays;
public class Demo6 {
public static void main(String[] args) {
int[][] data = new int[2][3];
//赋值
for(int i = 0 ; i < 2 ; i++){
for(int j =0 ; j<3 ;j++){
data[i][j] = (int) (Math.random()*100);
}
}
//打印
for(int i = 0 ; i < 2 ; i++){
System.out.println(Arrays.toString(data[i]));
}
//排序并打印
for(int i = 0 ; i < 2 ; i++){
//排序
Arrays.sort(data[i]);
System.out.println("第"+(i+1)+"行排序后");
System.out.println(Arrays.toString(data[i]));
}
}
}
有疑问追问
import java.util.Arrays;
import java.util.Random;
public class Main {
public static void main(String[] args) {
int [][]data = new int[2][3];
Random r = new Random();
data[0][0] = r.nextInt(101);
data[0][1] = r.nextInt(101);
data[0][2] = r.nextInt(101);
data[1][0] = r.nextInt(101);
data[1][1] = r.nextInt(101);
data[1][2] = r.nextInt(101);
show(data);
Arrays.sort(data[0]);
show(data);
Arrays.sort(data[1]);
show(data);
}
public static void show(int [][] data) {
System.out.println(Arrays.toString(data[0]));
System.out.println(Arrays.toString(data[1]));
System.out.println();
}
}
import java.util.Random;
public class test5 {
public static void main(String[] args) {
int[][] score = new int[2][3];
insert(score);
}
public static void insert(int[][] score){
Random r = new Random();
for(int i=0;i<2;i++) {
for(int j =0; j<3;j++) {
score[i][j]=r.nextInt(101);
}
}
}
}
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