package bwk2;
import java.util.Scanner;
public class Zye {
public static void main(String[] args) {
//1.定义长度位5的整型数组,输入他们的值,用冒泡排序后输出.
int[] a = new int[5];
int i, j;
int temp;
Scanner input = new Scanner(System.in);
System.out.println("请输入5个整数:");
for (i = 0; i < 5; i++) {
a[i] = input.nextInt();
}
for (i = 0; i < a.length - 1; i++) {
for (j = 0; j < a.length - 1 - i; j++) {
if (a[j] > a[j + 1]) {
temp = a[j];
a[j] = a[j + 1];
a[j + 1] = temp;
}
}
}
System.out.println("排序后:");
for (i = 0; i < a.length; i++) {
System.out.println(a[i] + "\t");
}
}
}
package bwk2;
import java.util.Scanner;
public class Zye {
public static void main(String[] args) {
//2.定义数组{34,22,35,67,45,66,12,33},输入一个数a,查找在数组中是否存在,如果存在,输出下标,不存在输出"not found";
Scanner input=new Scanner(System.in);
int b=0;
int[] sz={34,22,35,67,45,66,12,33};
System.out.println("输入一个数：");
int a=input.nextInt();
for (int i=0; i<sz.length;i++) {
if (a==sz[i]){
System.out.println("该数组下标是："+i);
b=1;
}
}
if(b!=1){
System.out.println("not found");
}
}}
package bwk2;
import java.util.Scanner;
public class Zye {
public static void main(String[] args) {
// 3.以矩阵的形式输出一个double型二维数组（长度分别为5、4，值自己设定）的值。
Scanner input = new Scanner(System.in);
int[][] a = new int[5][4];
int m = 0;
for (int i = 0; i < 5; i++) {
for (int j = 0; j < 4; j++) {
a[i][j] = m;
m++;
}
}
System.out.println("你输入的数组为:");
for (int i = 0; i < 5; i++) {
for (int j = 0; j < 4; j++) {
System.out.print(a[i][j] + "\t");
}
System.out.println();
}
}
}
package bwk2;
import java.util.Scanner;
public class Zye {
public static void main(String[] args) {
// 4.定义一个二维数组(长度分别为3,4,值自己设定),求该二维数组的最大值.
Scanner input = new Scanner(System.in);
int[][] a = new int[5][4];
int m = 0;
int max=0;
for (int i = 0; i < 3; i++) {
for (int j = 0; j < 4; j++) {
a[i][j] = m;
m++;
}
}
for (int i = 0; i < a.length; i++) {
for (int j = 0; j < a[i].length-1; j++) {
if(max<a[i][j]){
max=a[i][j];
}
}
}
System.out.println("最大值是:"+max);
}
}
