📅  最后修改于: 2022-03-11 14:52:09.888000             🧑  作者: Mango
public static void main(String args[]){
String s1="my name is khan my name is java";
String replaceString=s1.replace("is","was");//replaces all occurrences of "is" to "was"
System.out.println(replaceString);
}}