看程序写结果
public static void main(String[] args) {
int a = 10;
int b = 20;
System.out.println("a:"+a+",b:"+b); a = 10 b = 20 ;
change(a,b);
System.out.println("a:"+a+",b:"+b); a = 10 b = 20;
int[] arr = {1,2,3,4,5};
change(arr);
System.out.println(arr[1]); arr[1] = 4;
}
public static void change(int a,int b) {
System.out.println("a:"+a+",b:"+b); a = 10 b = 20;
a = b; a = 20;
b = a + b; b = 40;
System.out.println("a:"+a+",b:"+b); a = 20 b = 40;
}
public static void change(int[] arr) {
for(int x=0; x<arr.length; x++) {
if(arr[x]%2==0) {
arr[x]*=2; { 1 , 4 , 3 , 8 , 5}
}
}
} |
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