小Lemon带大家走进Java面试基础问题

面试基础问题，小柠檬带你解决

数组判断

package com.test.demo;

public class ShuZuPanDuan {
public static void main(String[] args) {
int[] qweStrings = {1,-1,1,-6,-1,4,-2,1,1};
for (int i=0;i if(qweStrings[i]<0){
qweStrings[i]=qweStrings[i]+5;
}else if(qweStrings[i]>0){
qweStrings[i]–;
}else{

		}
	}
	for (int i:qweStrings){
		System.out.println(i);
	}
}

}

冒泡排序

package com.test.demo;

public class MaoPaoPaiXu {
public static void main(String[] args) {
int arr[]=new int[]{12,36,54,28,94,32};
int temp;
for(int i = 0 ;i for(int j=0;j if(arr[j+1] temp=arr[j];
arr[j]=arr[j+1];
arr[j+1]=temp;

			}
		}
	}
	for(int i:arr){
		System.out.println(i);
	}
}

}

倒计时

package com.test.demo;

public class DaoJiShi {
public static void main(String[] args) throws InterruptedException {
for(int i=10;i>0;i–){
System.out.println(i+"!");
Thread.sleep(1000);
}

}

}下期再见！小柠檬等你们哟！爱你们！