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String mainString = "Hello, World!";
String substring = "World";
if (mainString.contains(substring)) {
System.out.println("Substring found in the main string.");
} else {
System.out.println("Substring not found in the main string.");
}
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String s1 = "My name is GFG";
// prints true
System.out.println(s1.contains("GFG"));
// prints false
System.out.println(s1.contains("geeks"));
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String text = "Hello, World!";
String substring = "World";
boolean containsSubstring = text.contains(substring);
System.out.println("Substring found: " + containsSubstring);
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public boolean contains(int value)
{
int index = indexOf(value);
if (index != -1)
{
return true;
}
return false;
}
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private void checkResize()
{
int length = elementData.length;
if (size == length)
{
elementData = Arrays.copyOf(elementData, 2*size);
}
}