public class test602
{
public static void main(String args[])
{
String programOut=" I love java program language";
String key="love";
int index=programOut.indexOf(key);
System.out.println ("Found key at "+index);
}
}问题:不太明白这段代码是什么意思?只知道最后输出的结果是"Found key at 3" (初学者)谢谢!
String programOut=" I love java program language";
String key="love";
int index=programOut.indexOf(key);
System.out.println ("Found key at "+index);
{
public static void main(String args[])
{
String programOut=" I love java program language";
String key="love";
int index=programOut.indexOf(key);
System.out.println ("Found key at "+index);
}
}问题:不太明白这段代码是什么意思?只知道最后输出的结果是"Found key at 3" (初学者)谢谢!
String programOut=" I love java program language";
String key="love";
int index=programOut.indexOf(key);
System.out.println ("Found key at "+index);
解决方案 »
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