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IndexOfTest.java
public class IndexOfTest {
public static void main(String[] args) {
String s = "I Love Jabook & Java !";
System.out.println(s.indexOf('J')); // 7
System.out.println(s.indexOf('J', 8)); // 16
System.out.println(s.indexOf('a')); // 8
System.out.println(s.indexOf('a', 100)); // -1
System.out.println(s.indexOf('X')); // -1
// ù¹øÂ° ´Ü¾î¸¦ °Ë»ö
System.out.println(s.substring(7, (s.indexOf(' ', 7)))); // Jabook
}
}
C:\javaExample\String>javac IndexOfTest.java
C:\javaExample\String>java IndexOfTest
7
16
8
-1
-1
Jabook
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