Question

java中一维数组相加列子

Answer 1

public class BackArray {

public static void main(String[] args) {
int a[]={1,2,3,4,5,7};
int b[]={6,7,8,9,10,1,2,3};
int c[]=add(a,b);
for(int i=0;i<c.length;i++){
System.out.print(c[i]+",");
}
}

public static int[] add(int x[],int y[]){
int len=x.length>y.length?x.length:y.length;
int a[]=new int[len];
int i=0;
for(i=0;i<x.length;i++){
if(i<y.length){
a[i]=x[i]+y[i];
}else{
//如果X数组较长
a[i]=x[i];
}
}

//如果Y数组较长
if(y.length>x.length){
while(i<y.length){
a[i]=y[i];
i++;
}

}

return a;
}

}

运行结果：
7,9,11,13,15,8,2,3,

Answer 2

for(int i=0;i<arr.length;i++)
{
sum+=arr[i];
}