先上兩個例子例子1：public?class?IntegerArray{
????public?static?void?main(String[]?args){
????????Integer[]?scores1?=?new?Integer[]{1,2,3,4,5};
????????Integer[]?scores2?=?new?Integer[scores1.length];
????????for(int?i?=?0;?i?<?scores1.length;?i++){
????????????scores2[i]?=?scores1[i];
????????}
????????for(Integer?score2:?scores2){
????????System.out.print(score2);
????????}
????????System.out.println();
????????scores2[0]?=?7;
????????for(Integer?score1?:?scores1){
????????????System.out.print(score1);
????????}
????????System.out.println();
????????for(Integer?score2:?scores2){
????????????System.out.print(score2);
????????????}
????}
}
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運行結(jié)果：
12345
12345
72345
--------------------------------------------------------
例子2：
public?class?ClassArray?{
????public?static?void?main(String[]?args){
????????Clothes[]?c1?=?{new?Clothes("red",?'L'),?new?Clothes("blue",?'M')};
????????Clothes[]?c2?=?new?Clothes[c1.length];
????????for(int?i?=?0;?i?<?c1.length;?i++){
????????????c2[i]?=?c1[i];
????????}
????????for(Clothes?c?:?c2){
????????????System.out.print(c.color?+?"--"?+?c.size?+"?");
????????}
????????c2[0].color?=?"black";
????????System.out.println();
????????for(Clothes?c?:?c1){
????????????System.out.print(c.color?+?"--"?+?c.size?+?"?");
????????}
????????System.out.println();
????????for(Clothes?c?:?c2){
????????????System.out.print(c.color?+?"--"?+?c.size?+"?");
????????}
????}
}
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運行結(jié)果：
red--L?blue--M?
black--L?blue--M?
black--L?blue--M?
----------------------------------------------------------------------
疑問：同樣是類類型數(shù)組，為什么運行的結(jié)果不同，一個是2個數(shù)組變量分別指向2個不同的數(shù)組對象，
另一個則是2個數(shù)組變量指向同一個數(shù)組對象；難道就是因為Integer這個類比較特殊？希望知道的人幫忙解答一下。。。
同樣是類類型數(shù)組，為什么運行的結(jié)果不同？
這老頭壞的很_2019
2016-05-03 18:40:08
