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Write a Java Program to Check if a string contains a substring
PROGRAM:Java Program to Check if a string contains a substring
/*Java Program to Check if a string contains a substring*/
1: Check if a string contains a substring using contains()
class Main {
public static void main(String[] args) {
// create a string
String txt = “This is Programiz”;
String str1 = “Programiz”;
String str2 = “Programming”;
// check if name is present in txt
// using contains()
boolean result = txt.contains(str1);
if(result) {
System.out.println(str1 + ” is present in the string.”);
}
else {
System.out.println(str1 + ” is not present in the string.”);
}
result = txt.contains(str2);
if(result) {
System.out.println(str2 + ” is present in the string.”);
}
else {
System.out.println(str2 + ” is not present in the string.”);
}
}
}
2: Check if a string contains a substring using indexOf()
class Main {
public static void main(String[] args) {
// create a string
String txt = “This is Programiz”;
String str1 = “Programiz”;
String str2 = “Programming”;
// check if str1 is present in txt
// using indexOf()
int result = txt.indexOf(str1);
if(result == -1) {
System.out.println(str1 + ” not is present in the string.”);
}
else {
System.out.println(str1 + ” is present in the string.”);
}
// check if str2 is present in txt
// using indexOf()
result = txt.indexOf(str2);
if(result == -1) {
System.out.println(str2 + ” is not present in the string.”);
}
else {
System.out.println(str2 + ” is present in the string.”);
}
}
}
