為什么void會(huì)出問題
public static void main(String[] args) { int a=16; double b=9.5; String str1="hello"; String str2="imooc"; System.out.println("a等于b："+(a==b)); System.out.println("a大于b："+(a>b)); System.out.println("a小于等于b："+(a<=b)); System.out.println("str1等于str2:"+(str1==str2));}為什么提示我void有錯(cuò)誤，println也不對(duì)，求指點(diǎn)
2016-10-09
能運(yùn)行啊
2016-10-10
“=”是string類判斷地址值 ? equals只判斷兩個(gè)是不是相同的
2016-10-10
public?class?HelloWorld{ ????public?static?void?main(String[]?args)?{ int?a=16; double?b=9.5; String?str1="hello"; String?str2="imooc"; System.out.println("a等于b："?+?(a?==??b)); System.out.println("a大于b："?+?(a?>??b)); System.out.println("a小于等于b："?+?(a?<=??b)); System.out.println("str1等于str2："?+str1.equals(str2)); } }