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@ -15,10 +15,7 @@ |
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*/ |
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*/ |
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package pkg; |
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package pkg; |
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import java.util.ArrayList; |
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import java.util.*; |
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import java.util.Arrays; |
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import java.util.List; |
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import java.util.OptionalInt; |
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import java.util.function.IntBinaryOperator; |
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import java.util.function.IntBinaryOperator; |
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import java.util.function.Supplier; |
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import java.util.function.Supplier; |
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@ -27,20 +24,19 @@ public class TestClassLambda { |
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public int field = 0; |
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public int field = 0; |
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public void testLambda() { |
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public void testLambda() { |
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List<Integer> list = Arrays.asList(1, 2, 3, 4, 5, 6, 7); |
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List<Integer> list = Arrays.asList(1, 2, 3, 4, 5, 6, 7); |
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int b = (int)Math.random(); |
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int b = (int)Math.random(); |
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list.forEach(n -> {int a = 2 * n; System.out.println(a + b + field);}); |
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list.forEach(n -> { |
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int a = 2 * n; |
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System.out.println(a + b + field); |
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}); |
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} |
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} |
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public void testLambda1() { |
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public void testLambda1() { |
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int a = (int)Math.random(); |
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int a = (int)Math.random(); |
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Runnable r = () -> { System.out.println("hello" + a); }; |
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Runnable r1 = () -> { System.out.println("hello1" + a); }; |
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Runnable r1 = () -> { System.out.println("hello1" + a); }; |
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Runnable r2 = () -> { System.out.println("hello2" + a); }; |
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} |
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} |
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public void testLambda2() { |
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public void testLambda2() { |
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@ -64,7 +60,7 @@ public class TestClassLambda { |
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List<String> list = new ArrayList<String>(); |
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List<String> list = new ArrayList<String>(); |
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int bottom = list.size() * 2; |
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int bottom = list.size() * 2; |
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int top = list.size() * 5; |
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int top = list.size() * 5; |
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list.removeIf( s -> (bottom >= s.length() && s.length() <= top) ); |
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list.removeIf(s -> (bottom >= s.length() && s.length() <= top)); |
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} |
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} |
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public static OptionalInt reduce(IntBinaryOperator op) { |
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public static OptionalInt reduce(IntBinaryOperator op) { |
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@ -78,5 +74,4 @@ public class TestClassLambda { |
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public static int localMax(int first, int second) { |
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public static int localMax(int first, int second) { |
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return 0; |
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return 0; |
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} |
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} |
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} |
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} |
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