第六周作业

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.

package ssa;

import java.util.Scanner;

public class lianxi {
public static void main(String[] args) {
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] + " ");
}

}
}

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"

package work;

import java.util.*;

import javax.swing.plaf.synth.SynthSpinnerUI;

public class wjb {

    public static void main(String[] args) {
        Scanner input=new Scanner(System.in);
        int[] x={34,22,35,67,45,66,12,33};
        System.out.println("请输入一个数:");
        int a=input.nextInt();
        for(int i=0;i<x.length;i++){
            if(x[i]==a){
                System.out.println("该数存在于数组中,下标为"+i);
            }else{
                System.out.println("not found");
            }break;
        }        
    }
}