public static void main(String[] args) {
// float boy[]={0,1,2,4,5};
// for(int i=0;i<5;i++){
// System.out.println(boy[i]);
//
/*float boy[]=new float[4];
System.out.println(boy.length);//数组名.lenght测数组长度;*/
char b[]={'J','A','V','A'};
char a[];
a = new char[3];
a[0]='你';
a[1]='们';
a[2]='好';
System.out.println("数组a的长度："+a.length);
System.out.println("数组b的长度："+b.length);
}
}
import java.util.Scanner;
class temp2 {
public static void main(String[] args) {
temp X = new temp();//将temp在此类中实例化；
//主程序，并进行数据a,b的输入
Scanner a=new Scanner(System.in);//将数据a读入的格式;
Scanner b=new Scanner(System.in);//将数据b读入的格式;
X.wight=a.nextInt();
X.height=b.nextInt();
int B=X.getAear();
System.out.println(B);
}
}
import java.util.Scanner;
public class temp3 {
public static void main(String[] args) {
double a,b,c;
double sum=0;
Scanner reader = new Scanner(System.in);
System.out.println("请输入a的值");
a=reader.nextDouble();
System.out.println("请输入b的值");
b=reader.nextDouble();
System.out.println("请输入c的值");
c=reader.nextDouble();
sum=a+b+c;
System.out.println("该数的和为");
System.out.println(sum);
}
}
public class temp9 {
public static void main(String[] args) {
char x='你',y='e',z='努';
if(x>'A'){
y='力';
z='工';
}
else
y='作';
z='好';
System.out.println(x+","+y+","+z);
}
}